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Prof. Pankaj Das, FRSC

Professor, Department of Chemistry
  • Email - [email protected]
  • Phone No. - 9435394373
  • Department of Chemistry
  • Designation - Professor

Profile

EDUCATION:

PhD (Chemistry)  : CSIR- NEIST, Jorhat, Assam (2002) (Under Dibrugarh University)

POSTDOCTORAL : University of Brest, France, one year (2002-2003)

                              University of Porto, Portugal, two years (2003-2005)

TEACHING / ADMINISTRATION:

Director, Directorate, Five Years Integrated Postgraduate Programme (FYIPGP), Dibrugarh University, July 2024-onwards

Professor, Dept. of Chemistry, Dibrugarh University (10.07.2014-till date)

Professor & Head, Department of Chemistry, Dibrugarh University (16.07.2015-30.06.2018)

Professor & Head, Department of Chemistry, Rajiv Gandhi University (23.05.2014-09.07.2014)

Associate Prof & Head, Department of Chemistry Rajiv Gandhi University (01.10.2012-22.05.2014)

Associate Professor, Department of Chemistry Rajiv Gandhi University (30.07.2012-30.09.2012)

Assistant Professor, Dept. of Chemistry, Dibrugarh University (25.11.2005-29.07.2012)

OTHER RESPONSIBILITIES:

Coordinator, DST-PURSE project Dibrugarh University (2023-2027)

Editor, Current Indian Science: Organometallic Chemistry (Bentham Science)  2021-2024

UGC-SAP-DRS Project Coordinator (Chemistry) 2016-2021

ACADEMIC ACTIVITIES / RECOGNITIONS ABROAD:

Visiting Scientist, Technical University of Vienna, 2018 (One month),

Visiting Scientist, Technical University of Vienna, 2015 (One month)

Visiting Scientist, University of Brest, France, 2008 (two months)

Visiting Scientist, L.V .P. Institute, Kiev, Ukraine Indo-Ukraine Prog 2008 (one week)

Visiting Scientist, Univ. of Fribourg, Switzerland Indo-Swiss Prog 2009 (two weeks)

Visiting Scientist, L.V. P. Institute, Kiev, Ukraine Indo-Ukraine Prog. 2009 (one week)

MEMBERS OF ACADEMIC COMMITTEE:

Member of Academic Council, Dibrugarh University, 2014-present

Member of Academic Council, J. B. College (Autonomous), Jorhat, 2018-present

Member College Development Council, Dibrugarh University, 2022 onwards

Members of Undergraduate Board, Dibrugarh University, 2022-present

Member of Board of Studies, Rajiv Gandhi Central University, Itanagar, 2016-present  

Member of Board of Studies, Dept. of Chemistry, NEHU, Shillong, 2021-Present

Member of Board of Studies, Dept. Chemistry, Arunachal University of Studies, 2019-2021

Member of Board of Studies, Dept. Chemistry, Assam University, Silchar, 2021-present

PROFESSIONAL MEMBERSHIPS:

Fellow of Royal Society of Chemistry (2022)

Life Member:  Chemical Research Society of India (2013-present)

Past Member: American Chemical Society (2016-2017)

PUBLICATIONS:    

Paper Published:        66 (Av. IF: 3.10)

Total citation:             1509

h-index:                      22

Patent filed/granted:   4

Ph.D  GUIDANCE:           

Post-Doctoral Fellow: 2   

Post-Doctoralship Funding Agency  Awardees Current  Designation
2018 DST SERB (NPDF) Dr. Sujata Pramanik   
2019 UGC (Kothari) Dr. Podma Pollov Sarmah Scientist, Biochemistry, Toklai Tea Research Institute, Jorhat

Ph.D Awarded: 13     

    Ph.D. Awarded     Awardees                      Current designation
2012 Dr. Chandan Sarmah Senior Scientific Assistant(Chem), ONGC
2013 Dr. Malabika Borah

Assistant Professor,  B.N. College, Dhubri
2015 Dr. Archana Tairai Lecturer, Lahowal College, Dibrugarh
2015  (Co-supervisor) Dr. Ponchami Sharma Assistant Professor, Haflong Government College, Dima hasao
2017 Dr. Debojeet Sahu Assistant Professor, The Assam Royal Global University, Guwahati
2017 Dr. Nasifa Shahnaz  
2018 Dr. Biplab Banik Assistant Professor, Tinsukia College, Tinsukia
2018 (Co-supervisor) Dr. Sinki Kolita  
2021 Dr. Munmi Hazarika Teacher, Don Bosco Higher Secondary School, Dibrugarh
2021 (Co-supervisor) Dr. Mrinaly Suri Assistant Professor, Tingkhong College, Tingkhong
2021 Dr. Amlan Puzari Assistant Professor, Nanda Nath Saikia College, Titabor
2021 Dr. Gauravjyoti D. Kalita Post Dctoral Fellow, Gifu Pharmaceutical University, Japan
2022 Dr. Dhrubajit Borah Assistant Professor, Nanda Nath Saikia College, Titabor

Ph.D. Pursuing: 5

Registration Year Name Fellowship
             2020 Bibekananda Gogoi  
             2021 Krisangi Bordoloi SRF, DST-INSPIRE
             2022 Jyotishma Baruah SRF, DST-PURSE
             2023 Poly Borgohain   
             2023 Jyotirmoyee Saikia PA-I , SERB-DST

Publications

PUBLICATION DETAILS:       

  1.  B. Gogoi, P. Borgohain, S. G. Patra, B. J. Borah, P. Das, Pd-PEPPSI Catalyzed Dehydrogenative Oxidation of Alcohols to Carboxylic Acids: An Experimental and Theoretical Study, Organometallics, 2024 (in press); DOI: 10.1021/acs.organomet.4c00154
  2. K. Bardoloi, J. Baruah, B. Gogoi, P. Das, Recent Advances in Heterogeneously Catalyzed Acceptorless Dehydrogenation of Alcohols to Carbonyl Derivatives and N-heterocyclic Compounds, Current Indian Science, 2024 (in press) DOI: 10.2174/012210299X318258240710090746
  3. M. Hazarika, P. Das, A. Puzari, Green Synthesis of Au-Ni Bimetallic Nanoparticles using Aqueous Extract of Coccinia grandis (L.) Voigt and their Catalytic Activity in Oxidation of Alcohols, Current Catalysis, 2024 (in press)
  4.  P. Das, C. Elleouet, F. Y. Pettillon, P. Schollhammer, Aza-Diphosphido-Bridged Di-Iron Complexes Related to the [FeFe]-Hydrogenases, MolBank, 2024, 2, M1797
  5. B. Gogoi, S. Khargharia, R. Kar, B. J. Borah, P. Das, A new air-stable Pd-PEPPSI N-heterocyclic carbene complex: Synthesis, structure, computational and catalytical studies, J. mol. struct., 2024, 1295, 136678.
  6. K. Bordoloi, G. D. Kalita, P. Das, Iridium Nanoparticles on NiO as Heterogeneous Catalysts for Acceptorless Dehydrogenation of Primary Alcohols with Tunable Product Selectivity, ACS Appl. Nano-Mater, 2023, 6(16), 14786-14797.
  7. K. Bordoloi, G. D. Kalita, P. Das, Acceptorless Dehydrogenation of Alcohols to Carboxylic Acids by Palladium Nanoparticles Supported on NiO: Delving into Metal-Support Cooperation in Catalysis, Dalton Trans., 2022, 51, 9922-9934.
  8. A. Puzari, D. Borah, P. Das, Binuclear Pd(II) complexes with multidentate Schiff base ligands: Synthesis, catalysis and antibacterial properties, Monatsh. Chem.,2022, 153:435–442.
  9. G. D. Kalita,  P. P. Sarmah, G.Kalita, P. Das, Bimetallic Au–Pd nanoparticles supported on silica with a tunable core@shell structure: enhanced catalytic activity of Pd(core)–Au(shell) over Au(core)–Pd(shell), Nanoscale Advances, 2021, 3, 5399.
  10. G. D. Kalita, M. R. Das, P. Das, Fabrication of magnetically separable ruthenium nanoparticles decorated on channelled silica microspheres: Efficient catalysts for chemoselective hydrogenation of nitroarenes, Dalton Trans., 2021, 50, 13483-13496.
  11. D Borah, A. Puzari, P. Das, Highly efficient aqueous-phase Sonogashira coupling catalyzedby Pd-PEEPSI/PPh3 under aerobic condition, J. Chem. Sci., 2021, 133-103.
  12. A. Puzari, A. Gogoi, P. Das, An unsymmetrical Schiff-base derived recyclable Pd-catalyst for Suzuki–Miyaura and Sonogashira reactions in aqueous media, J. Chem. Sci. 2021,  133, 56.
  13. M. Borah, N. Saikia, P. Das,  A combined computational and experimental study of Fe(II) complexes with hemilabile phosphine-based P,O donor ligands, J. Mol. Struct., 2021, 1230, 129661.
  14. D. Borah, B. Saha, B. Sarma, P. Das, A cyclometalated Ir(III)–NHC complex as a recyclable catalyst for acceptorless dehydrogenation of alcohols to carboxylic acids, Dalton Trans., 2020, 49, 16866-16876.
  15. M. Hazarika, G. D. Kalita, S. Pramanik, D. Borah, P. Das, Bio-functionalized anisotropic gold nanoparticles as efficient catalyst for nitrile hydration and hydrogenation of nitrophenol, Current Res. Green Sustain. Chem., 2020, 3, 100018.
  16. M. Suri,  F. Liaquat Hussain,  C. Gogoi,   P. Das,  P. Pahari, Magnetically recoverable silica catalysed solvent-free domino Knoevenagel-hetero-Diels–Alder reaction to access divergent chromenones,  Org. Biomol. Chem., 2020,18, 2058-2062.
  17. D. Borah, B. Saha, B. Sarma, P. Das., A new PEPPSI type N-heterocyclic carbene palladium(II) complex and its efficiency as a catalyst for Mizoroki-Heck cross-coupling reactions in water. J. Chem. Sc., 2020, 132, 51.
  18. G. D. Kalita, P. P. Sarmah, P. K. Saikia, L. Saikia, P. Das, Selective hydrogenation of nitroarenes to amines by ligand assisted Pd nanoparticles: Influence of donor ligands on catalytic activity, New J. Chem. 2019 43, 4253 – 4260.
  19. B. Banik, P. P. Sarmah, A. Dutta, P. Mondal, P. Das, A new water-soluble Rh(III)-salophen complex as efficient catalyst for alcohol oxidation in aqueous medium, Ind. J. Chem. Sec.A, 2019, 58A, 29-35.
  20. S. Pramanik, P. Das, Metal-Based Nanomaterials and their polymer nanocomposites (Chapter 3), in Nanomaterials and Polymer nanocomposite, Elsevier, 2018, 91-121.
  21. A. Puzari, N. Shahnaz, P. Das, Palladium complexes with two unsymmetrical Schiff base ligands: Highly active catalyst for activation of chloroarenes in Suzuki-Miyaura reaction, J. Indian Chem. Soc. 2018, 95,837-842.
  22. D. Borah, M. Hazarika, P. Tailor, A. R. Silva, B. Chetia, G. Singaravelu, P. Das, Starch-templated bio-synthesis of gold nanoflowers for in vitro antimicrobial and anticancer activities, Applied Nanoscience, 2018, 8(3), 241-253.
  23. M. Hazarika, D. Borah, P. Bora, A. R. Silva, P. Das, Biogenic synthesis of palladium nanoparticles and their applications as catalyst and antimicrobial agent, PLOS ONE 2017, 12(9): e0184936.
  24. S. Kolita, L. Dutta, P. Das, P. J. Bhuyan, One-Pot Synthesis of Unsymmetrical Bis(4-Hydroxycoumarin-3-yl)methanes, Synlett, 2017, 28(17), 2291-2294.
  25. S. Pramanik, M. Das, D. Das, P. Das, Sustainable Redox Chemistry Route to Multifaceted Fe-Pd Heteronanostructure: Delving into the Synergistic Influence in Catalysis, Chem. Select , 2017, 2(16) 4577-4585.
  26. P. Das,   B. Chetia, R. Prasanth, J. Madhavan, G. Singaravelu,G. Benelli, K. Murugan, Green nanosynthesis and functionalization of gold nanoparticles as PTP 1B inhibitors, J. Cluster Science, 2017, 28, 2269-2277.
  27. D. Sahu, A. R. Silva, P. Das, Facile synthesis of palladium nanoparticles supported on silica: An efficient phosphine-freeheterogeneous catalyst for Suzuki coupling in aqueous media, Catalysis Communications, 2016, 86, 32-35.
  28. N. Shahnaz, A. Puzari, B. Paul, P. Das, Activation of aryl chlorides in water for Suzuki coupling with a hydrophilic salen-Pd(II) catalyst, Catalysis Communications, 2016, 86, 55-58.
  29. P. Das, W. Linert, Schiff base-derived homogeneous and heterogeneous palladium catalysts for the Suzuki-Miyaura reaction, Coord. Chem. Rev. 2016, 1-23.
  30. B. Banik, A. Tairai,  P. K. Bhattacharyya, P. Das,  Excellent Suzuki–Miyauracatalytic activity of a new Pd(II) complex with sulfonamide–Schiff base ligand, Appl. Organomet. Chem. 2016, 30, 519-52.
  31. P. Sharma, D. J. Borah, P. Das, M. R. Das, Cationic and anionic dye removal from aqueous solution using montmorillonite clay: evaluation of adsorption parameters and mechanism, Desalination and water treatment, 2016, 57(18) 8372-838.
  32. D. Sahu, A. R. Silva, P. Das, A novel Fe(III)-based heterogeneous catalyst for aqueous oxidation of alcohols using molecular oxygen, RSC Advances, 2015, 78553-78560.
  33. N. Shahzaz, P. Das, Palladium complex containing two sterically hindered ligands as highly efficient catalyst for Suzuki-Miyaura reaction, Appl. Organomet. Chem. 2015, 829-833.
  34. D. Sahu, P. Das, Phosphine-stabilized Pd nanoparticles supported on silica as highly active catalyst for Suzuki-Miyaura cross-coupling reactions of aryl chlorides, RSC Advances, 2015, 5, 3512-3520.
  35. D. Sahu, C. Sarmah, P. Das, A highly efficient and recyclable silica-supported palladium catalysts for alcohol oxidation reaction, Tetrehedron Letter, 2014, 55, 3422-3425.
  36. D. Sahu, B. Banik, M. Borah, P. Das, Efficient Alcohol Oxidation Reaction Catalyzed by a Cobalt(II) and an Iron(III) complexes containing DPEPhos Ligand, Letters in Org. Chem, 2014, 11, 671-676.
  37. S. N. Orlyk, P. Das, L. M. Alekseenko, A, Y. Kapran, Activity of rhodium and palladium catalysts immobilized on functionalized silica in the decomposition and carbonylation of methanol, Theoretical and Experimental Chemistry, 49, 2013, C 236-241.
  38. C. Sarmah, D. Sahu, P. Das , An effective strategy for immobilizing a homogeneous palladium complex onto silica: Efficient and reusable catalyst for Suzuki-Miyaura reactions, Catal. Commun. 2013 ,41, 75-78.
  39. N. Shahnaz, B. Banik, P. Das, A highly efficient Schiff-base derived palladium catalyst for the Suzuki-Miyaura reactions of aryl chlorides, Tetrahedron Letter, 54, 2013,2886-2889.
  40. B. Banik, A. Tairai, N. Shahnaz, P. Das, Palladium(II) complex with a potential N4-type Schiffbase ligand as highly efficient catalyst for Suzuki-Miyaura reactions in aqueous medi, Tetrahedron Letter, 2012, 53, 5627–5630.
  41. C. Sarmah, D. Sahu, P. Das, Anchoring palladium acetate onto imine-functionalized silica gel through coordinative attachment: An effective recyclable catalyst for the Suzuki-Miyaura reaction in aqueous-isopropanol, Catal. Today, 198, 2012, 197.
  42. M. Borah, P. K. Bhattacharyya, P. Das, Iron carbonyl complex containing bis[2- (diphenylphosphino)phenyl]ether enhancing efficiency in the palladium-catalyzed Suzuki-Miyaura reaction, Appl. Organomet. Chem., 2012, 26, 130-134.
  43. A. Tairai, C. Sarmah, P. Das, A highly efficient catalytic system for microwave-assisted Suzuki– Miyaura reactions as well as room temperature homocoupling reactions of arylboronic acids in aqueous media, Ind. J. Chem. Sec. B, 2012, 51B, 843-848.
  44. A. Tairai, C. Sarmah, P. K.. Bhattacharyya, P. Das, Primary amine-based palladium(II) complexes as catalysts for Suzuki-Miyaura reaction: Experimental and theoretical investigations on the effects of substituents on nitrogen atom, Indian J. Chem. Sec. A, 51A, 2012, 1545-1552
  45. A. Tairai, C. Sarmah, N. Shahnaz, P. Das, Diphenyl-2-pyridylphosphine based palladium catalysts for the Suzuki-Miyaura reactions in environment friendly solvents, Lett. Org. Chem., 2012, 9, 509 -515.
  46. P. Das, M. Borah, F. Michaud, F. Petillon, P. Schollhammer, Phosphorus-carbon (P-CPy) bond cleavage on reacting the diphenyl-2-pyridylphosphine with triiron- dodecacarbonyl, Inorg. Chim. Acta, 2011, 376, 641.
  47. C. Sarmah, M. Borah, P. Das, Iron(0), Rhodium(I) and Palladium(II) complexes with p-(N,Ndimethylaminophenyl) diphenylphosphine and the application of the palladium complex as catalyst for Suzuki-Miyaura cross-coupling reaction, Applied Organometallic Chemistry, 2011, 25, 552-558.
  48. P. Das, C. Sarmah, A. Tairai, U. Bora, Highly efficient amine-based catalytic system for room temperature Suzuki-Miyaura reactions of aryl halides with arylboronic acids, Applied Organometallic Chemistry, 2011, 25, 283-288.
  49. P. Das, M. Borah, C. Sarmah, P. K. Gogoi, L. M. Alekseenko, S. M. Orlyk, Synthesis of a rhodium(I) carbonyl complex with a chiral aminodiphosphine ligand and its immobilization onto amino-propylfunctionalized silica gel, J. Coord. Chem., 2010, 63, 7, 1107-1117.
  50. P. Das, U. Bora, A. Tairai, C. Sharma, Triphenylphosphine chalcogen-ides as efficient ligands for room temperature palladium(II) cataly-zed Suzuki-Miyaura reaction, Tetrahedron. Letter 2010, 51, 1479-1482.
  51. P. Das, P. P. Sarmah, M. Borah, A. K. Phukan, Low-spin, mononuclear, Fe(III) complexes with P,N donor hemilabile ligands: A combined experimental and theoretical study, Inorganica Chimica Acta, 2009, 362, 5001-5011.
  52. P. Das, A. R. Silva, A. Carvalho, J. Pires, C. Freire, Organo-functionalized mesoporous supports for Jacobsen-type catalyst: Laponite versus MCM-4, J. Material Science, 2009, 44, 11, 2865- 2875.
  53. P. Das, A. R. Silva, A. Carvalho, J. Pires, C. Freire, Chiral Mn(III) salen complex, Enantioselective epoxidation, covalent anchoring, Laponite, MCM-41, FSM-16, Catalysis Letter, 2009, 129, 367-375.
  54. P.Das, A. R. Silva, A. P. Carvalho, J. Pires, C. Freire, Post-Synthesis organo-sylanation of mesostructured FSM-16 for chiral Mn(III) salen catalyst anchoring, Colloids and Surfaces A: A Physicochem. Eng. Aspects, 2008, 329, 3, 190-197.
  55. P. Das, J. Baruah, P. Tamuli, Synthesis, spectroscopic, thermogravi-metric and electrochemical characteri-sation of triphenylphosphine-oxide complexes of the type [MClx(Ph3PO)6-x] [M = Cu(II), Co(II), x = 2; M = Fe(III), x = 3], Asian J Chemistry, 2008, 20, 8, 5958
  56. P. Das, I. K.Biernacka, A. R. Silva, A. P. Carvalho, J. Pires, C. Freire, Chiral Mn(III) Salen Complexes Encapsulated into Aluminium Pillared Clay and their Activity as Catalyst for Epoxidation of Styrene, J. Mol Catal: Chemical, 2006, 248, 135-143.
  57. P. Das, J. F. Capon, F. Gloaguen, F. Y. Pétillon, P. Schollhammer, J. Talarmin, K. W. Muir, Di-iron aza diphosphido complexes: mimics for the active site of Fe-only hydrogenase, and effects of changing the coordinating atoms of the bridging ligand in [Fe2{µ-(ECH2)2NR}(CO)6], Inorganic Chemistry, 2004, 43 (26), 8203-8205.
  58. D. K. Dutta, J. D. Woollins, A. M. Z. Slawin, D. Konwar, P. Das, M. Sharma, P. Bhattacharyya, S. M. Aucott, An alternative strategy to an electron rich phosphine based carbonylation catalyst, Dalton Transaction, 2003, 13, 2674 – 2679.
  59. P. Chutia, M. Sharma, P. Das, N. Kumari, J. D. Woollins, A. M. Z. Slawin, D. K. Dutta, Carbonyl complexes of ruthenium(II) with unsymmetrical phosphine-phosphine-sulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n = 1 - 4, Polyhedron, 2003, 22, 19, 2725-2730.
  60. P. Das, M. Borauh, N. Kumari, M. Sharma, D. Konwar, D. K. Dutta, Rhodium Nitrone Complexes: Efficient Catalysts for Carbonylation of Methanol, J. Molecular Catalysis A: Chemical, 2002, 178, 283-287.
  61. P. Das, M. Sharma, N. Kumari, D. Konwar, D. K. Dutta, Synthesis and Characterization of Ruthenium(II) Complexes of different types of Potential Hemilabile P-O and P-S Donors Ligands, Indian Journal of Chem. Sec A: 41A, 2002, 560-562.
  62. N. Kumari, M. Sharma, P. Das, D. K. Dutta, Carbonylrhodium Complexes of Pyridine Ligands and their Catalytic Activity towards Carbonylation of Methanol, Applied Organometallic Chemistry, 2002, 16 (5), 258 -264.
  63. P. Das, P. Chutia, D. K. Dutta, Efficient Carbonylation of Methanol Catalyzed by Rhodium(I) Complexes containing Cyclooctadiene and Triphenylphosphinechalcogenide, Chemistry Letter, 2002, 7, 766-767.
  64. M. Sharma, N. Kumari, P. Das, P. Chutia, D. K. Dutta, Catalytic activity of dicarbony-lrhodium complexes of amino benzoic acid ligands for carbonylation of methanol, J. Molecular Catalysis A: Chemical, 2002,188, 25-35.
  65. P. Das, D. Konwar, M. Sharma, N. Kumari, D. K. Dutta, Synthesis and Reactivity of Rhodium(I) Carbonyl Complexes of Ether-phosphine Ligands and their Catalytic Activity, Applied Organometallic Chemistry, 2002, 16, 302-306.
  66. P. Das, D. Konwar and D. K. Dutta, Rhodium Complexes of Diphenylphosphine(ethylthio) ethane, Indian Journal of Chemistry, Sec A: 40A, 2001, 626-629.
  67. P. Das, D. Konwar, P. Sengupta, D.K. Dutta, Rhodium (I) Carbonyl Complexes of Triphenylphosphine chalcogenides and their Catalytic Activity, Transition Metal Chemistry, 2000, 25, 426-429.

PATENTS:

  1. An Improved Process for Carbonylation of Methanol using Novel Rhodium Metal Complexes as Catalyst, Application 474/DEL/2002 published 2007-04- 27, filed 2002-04-22, Inventor: D. K. Dutta, M. Sharma, P. Das, N. Kumari, M. Baruah, D. Konwar, No of Pages : 20, No of Claims : 6; Classification: C07C 51/00.
  2. An Improved Process for Producing Carboxylic Acid and its Ester using Electron rich Rhodium Phosphine Based Carbonyl Complexes as Catalysts, Application 219/DEL/2003 published 2007-05-04, filed 2003-03-05, Inventor:D. K. Dutta, J. D. Woollins, A. M. Z. Slawin, D. Konwar, P. Das, M. Sharma, P. Bhattacharyya, S. M. Aucott, No of Pages : 16 No of Claims : 6 , International Info Classification: C07C 051/235.
  3. A Process for the Preparation of Electron Rich Rhodium Carbonyl Complexes Containing Phosphine Based Chelating Ligand, Application 211/DEL/2003 published 2007-08-17, filed 2003-03-05,Inventor: D. K. Dutta, J. D. Woollins, A.M.Z. Slawin, D. Konwar, P. Das, M. Sharma, P. Bhattacharyya, S. M. Aucott. International Info Classification: C01G 55/00.
  4. A Process for the Preparation of Novel Rhodium Carbonyl Complexes, Application 475/DEL/2002 published 2007-04-27, filed 2002-04-22 , Inventor: D. K. Dutta, M. Sharma, P. Das, N. Kumari, M. Baruah, D. Konwar, No of Pages : 14 No of Claims : 10, International Info Classification: C07F 15/00

Courses Taken

Core 101: Inorganic Chemistry-I: Acid Base and Redox Chemistry

Core 201: Inorganic Chemistry-II: Inorganic Reaction mechanism

Core-301: Inorganic Chemistry-III: Iniroduction to Transition metal Organometallic Chemistry; Aookication of NMR spectroscopy in Inorganic Chemistry

Core-401: Inorganic Chemistry-IV; Inorganic reactions; Homogeneous and Heterogeneous Catalysis

Sponsored Projects

RESEARCH PROJECTS:       COMPLETED: 8;        ONGOING: 2 

RESEARCH PROJECTS AS PI/COORDINATOR:

ONGOING:

  1. Designing multifunctional transition metal-based nanostructured materials for catalysis and energy applications, Coordinator, DST-PURSE Grant, Dibrugarh University, Rs 10.76 Crores (2023-2027)
  2. Exploration of bimetallic synergy for acceptorless dehydrogenative oxidation of alcohols to value added product with concomittent hydrogen evolution, SERB-DST, New Delhi, Rs: 29.88 Lakhs (2023-2026)

 

COMPLETED:

  1. Designing PEPPSI-type palladium N-heterocyclic carbene complexes and their immobilization onto support for multifunctional catalysis, SERB-DST, New Delhi, Rs: 37.6 Lakhs, (2019-2022)
  2. Homogeneous and Heterogeneous Catalysis, Departmental Grant UGC-SAP-DRS-I (Coordinator), UGC New Delhi, Rs 1.49 Crores, (2016-2021),
  3. Design and Exploration of Hydrophilic Schiff-base ligands for palladium catalyzed organic reactions in Aqueous Media, DST, India, Rs 28.46 Lakhs, (2015-2018),
  4. Biological Synthesis and Development of nano gold PTP1B inihibitors, (2015-2018), DBT,India under DBT Twinning programme, Rs 57.4 Lakhs, (2014-2018)
  5. Designing palladium-based heterogeneous catalysts for cross-coupling as well as alcohol oxidation reactions, CSIR, New Delhi, Rs. 15.42 Lakhs, (2013-2016).
  6. Design of nano-phase and immobilized platinum metal based materials as novel catalysts for HC conversion processes, DST, India and Ministry of Education, Ukraine  under Indo-Ukraine Research programme, Rs 6.84 Lakhs, (2008-2011)
  7. Development of platinum group metal based heterogeneous catalysts through coordinative attachment between the support and the metal centre, UGC, New Delhi, Rs 8.37 Lakhs (2009-2012)
  8. Structural and Functional Mimics of the active site of Fe-Only Hydrogenase, Department of Science and Technology (DST), New Delhi, Rs 15.84 Lakhs, (2006-2009)
Profile

Profile

EDUCATION:

PhD (Chemistry)  : CSIR- NEIST, Jorhat, Assam (2002) (Under Dibrugarh University)

POSTDOCTORAL : University of Brest, France, one year (2002-2003)

                              University of Porto, Portugal, two years (2003-2005)

TEACHING / ADMINISTRATION:

Director, Directorate, Five Years Integrated Postgraduate Programme (FYIPGP), Dibrugarh University, July 2024-onwards

Professor, Dept. of Chemistry, Dibrugarh University (10.07.2014-till date)

Professor & Head, Department of Chemistry, Dibrugarh University (16.07.2015-30.06.2018)

Professor & Head, Department of Chemistry, Rajiv Gandhi University (23.05.2014-09.07.2014)

Associate Prof & Head, Department of Chemistry Rajiv Gandhi University (01.10.2012-22.05.2014)

Associate Professor, Department of Chemistry Rajiv Gandhi University (30.07.2012-30.09.2012)

Assistant Professor, Dept. of Chemistry, Dibrugarh University (25.11.2005-29.07.2012)

OTHER RESPONSIBILITIES:

Coordinator, DST-PURSE project Dibrugarh University (2023-2027)

Editor, Current Indian Science: Organometallic Chemistry (Bentham Science)  2021-2024

UGC-SAP-DRS Project Coordinator (Chemistry) 2016-2021

ACADEMIC ACTIVITIES / RECOGNITIONS ABROAD:

Visiting Scientist, Technical University of Vienna, 2018 (One month),

Visiting Scientist, Technical University of Vienna, 2015 (One month)

Visiting Scientist, University of Brest, France, 2008 (two months)

Visiting Scientist, L.V .P. Institute, Kiev, Ukraine Indo-Ukraine Prog 2008 (one week)

Visiting Scientist, Univ. of Fribourg, Switzerland Indo-Swiss Prog 2009 (two weeks)

Visiting Scientist, L.V. P. Institute, Kiev, Ukraine Indo-Ukraine Prog. 2009 (one week)

MEMBERS OF ACADEMIC COMMITTEE:

Member of Academic Council, Dibrugarh University, 2014-present

Member of Academic Council, J. B. College (Autonomous), Jorhat, 2018-present

Member College Development Council, Dibrugarh University, 2022 onwards

Members of Undergraduate Board, Dibrugarh University, 2022-present

Member of Board of Studies, Rajiv Gandhi Central University, Itanagar, 2016-present  

Member of Board of Studies, Dept. of Chemistry, NEHU, Shillong, 2021-Present

Member of Board of Studies, Dept. Chemistry, Arunachal University of Studies, 2019-2021

Member of Board of Studies, Dept. Chemistry, Assam University, Silchar, 2021-present

PROFESSIONAL MEMBERSHIPS:

Fellow of Royal Society of Chemistry (2022)

Life Member:  Chemical Research Society of India (2013-present)

Past Member: American Chemical Society (2016-2017)

PUBLICATIONS:    

Paper Published:        66 (Av. IF: 3.10)

Total citation:             1509

h-index:                      22

Patent filed/granted:   4

Ph.D  GUIDANCE:           

Post-Doctoral Fellow: 2   

Post-Doctoralship Funding Agency  Awardees Current  Designation
2018 DST SERB (NPDF) Dr. Sujata Pramanik   
2019 UGC (Kothari) Dr. Podma Pollov Sarmah Scientist, Biochemistry, Toklai Tea Research Institute, Jorhat

Ph.D Awarded: 13     

    Ph.D. Awarded     Awardees                      Current designation
2012 Dr. Chandan Sarmah Senior Scientific Assistant(Chem), ONGC
2013 Dr. Malabika Borah

Assistant Professor,  B.N. College, Dhubri
2015 Dr. Archana Tairai Lecturer, Lahowal College, Dibrugarh
2015  (Co-supervisor) Dr. Ponchami Sharma Assistant Professor, Haflong Government College, Dima hasao
2017 Dr. Debojeet Sahu Assistant Professor, The Assam Royal Global University, Guwahati
2017 Dr. Nasifa Shahnaz  
2018 Dr. Biplab Banik Assistant Professor, Tinsukia College, Tinsukia
2018 (Co-supervisor) Dr. Sinki Kolita  
2021 Dr. Munmi Hazarika Teacher, Don Bosco Higher Secondary School, Dibrugarh
2021 (Co-supervisor) Dr. Mrinaly Suri Assistant Professor, Tingkhong College, Tingkhong
2021 Dr. Amlan Puzari Assistant Professor, Nanda Nath Saikia College, Titabor
2021 Dr. Gauravjyoti D. Kalita Post Dctoral Fellow, Gifu Pharmaceutical University, Japan
2022 Dr. Dhrubajit Borah Assistant Professor, Nanda Nath Saikia College, Titabor

Ph.D. Pursuing: 5

Registration Year Name Fellowship
             2020 Bibekananda Gogoi  
             2021 Krisangi Bordoloi SRF, DST-INSPIRE
             2022 Jyotishma Baruah SRF, DST-PURSE
             2023 Poly Borgohain   
             2023 Jyotirmoyee Saikia PA-I , SERB-DST

Publications

Publications

 

PUBLICATION DETAILS:       

  1.  B. Gogoi, P. Borgohain, S. G. Patra, B. J. Borah, P. Das, Pd-PEPPSI Catalyzed Dehydrogenative Oxidation of Alcohols to Carboxylic Acids: An Experimental and Theoretical Study, Organometallics, 2024 (in press); DOI: 10.1021/acs.organomet.4c00154
  2. K. Bardoloi, J. Baruah, B. Gogoi, P. Das, Recent Advances in Heterogeneously Catalyzed Acceptorless Dehydrogenation of Alcohols to Carbonyl Derivatives and N-heterocyclic Compounds, Current Indian Science, 2024 (in press) DOI: 10.2174/012210299X318258240710090746
  3. M. Hazarika, P. Das, A. Puzari, Green Synthesis of Au-Ni Bimetallic Nanoparticles using Aqueous Extract of Coccinia grandis (L.) Voigt and their Catalytic Activity in Oxidation of Alcohols, Current Catalysis, 2024 (in press)
  4.  P. Das, C. Elleouet, F. Y. Pettillon, P. Schollhammer, Aza-Diphosphido-Bridged Di-Iron Complexes Related to the [FeFe]-Hydrogenases, MolBank, 2024, 2, M1797
  5. B. Gogoi, S. Khargharia, R. Kar, B. J. Borah, P. Das, A new air-stable Pd-PEPPSI N-heterocyclic carbene complex: Synthesis, structure, computational and catalytical studies, J. mol. struct., 2024, 1295, 136678.
  6. K. Bordoloi, G. D. Kalita, P. Das, Iridium Nanoparticles on NiO as Heterogeneous Catalysts for Acceptorless Dehydrogenation of Primary Alcohols with Tunable Product Selectivity, ACS Appl. Nano-Mater, 2023, 6(16), 14786-14797.
  7. K. Bordoloi, G. D. Kalita, P. Das, Acceptorless Dehydrogenation of Alcohols to Carboxylic Acids by Palladium Nanoparticles Supported on NiO: Delving into Metal-Support Cooperation in Catalysis, Dalton Trans., 2022, 51, 9922-9934.
  8. A. Puzari, D. Borah, P. Das, Binuclear Pd(II) complexes with multidentate Schiff base ligands: Synthesis, catalysis and antibacterial properties, Monatsh. Chem.,2022, 153:435–442.
  9. G. D. Kalita,  P. P. Sarmah, G.Kalita, P. Das, Bimetallic Au–Pd nanoparticles supported on silica with a tunable core@shell structure: enhanced catalytic activity of Pd(core)–Au(shell) over Au(core)–Pd(shell), Nanoscale Advances, 2021, 3, 5399.
  10. G. D. Kalita, M. R. Das, P. Das, Fabrication of magnetically separable ruthenium nanoparticles decorated on channelled silica microspheres: Efficient catalysts for chemoselective hydrogenation of nitroarenes, Dalton Trans., 2021, 50, 13483-13496.
  11. D Borah, A. Puzari, P. Das, Highly efficient aqueous-phase Sonogashira coupling catalyzedby Pd-PEEPSI/PPh3 under aerobic condition, J. Chem. Sci., 2021, 133-103.
  12. A. Puzari, A. Gogoi, P. Das, An unsymmetrical Schiff-base derived recyclable Pd-catalyst for Suzuki–Miyaura and Sonogashira reactions in aqueous media, J. Chem. Sci. 2021,  133, 56.
  13. M. Borah, N. Saikia, P. Das,  A combined computational and experimental study of Fe(II) complexes with hemilabile phosphine-based P,O donor ligands, J. Mol. Struct., 2021, 1230, 129661.
  14. D. Borah, B. Saha, B. Sarma, P. Das, A cyclometalated Ir(III)–NHC complex as a recyclable catalyst for acceptorless dehydrogenation of alcohols to carboxylic acids, Dalton Trans., 2020, 49, 16866-16876.
  15. M. Hazarika, G. D. Kalita, S. Pramanik, D. Borah, P. Das, Bio-functionalized anisotropic gold nanoparticles as efficient catalyst for nitrile hydration and hydrogenation of nitrophenol, Current Res. Green Sustain. Chem., 2020, 3, 100018.
  16. M. Suri,  F. Liaquat Hussain,  C. Gogoi,   P. Das,  P. Pahari, Magnetically recoverable silica catalysed solvent-free domino Knoevenagel-hetero-Diels–Alder reaction to access divergent chromenones,  Org. Biomol. Chem., 2020,18, 2058-2062.
  17. D. Borah, B. Saha, B. Sarma, P. Das., A new PEPPSI type N-heterocyclic carbene palladium(II) complex and its efficiency as a catalyst for Mizoroki-Heck cross-coupling reactions in water. J. Chem. Sc., 2020, 132, 51.
  18. G. D. Kalita, P. P. Sarmah, P. K. Saikia, L. Saikia, P. Das, Selective hydrogenation of nitroarenes to amines by ligand assisted Pd nanoparticles: Influence of donor ligands on catalytic activity, New J. Chem. 2019 43, 4253 – 4260.
  19. B. Banik, P. P. Sarmah, A. Dutta, P. Mondal, P. Das, A new water-soluble Rh(III)-salophen complex as efficient catalyst for alcohol oxidation in aqueous medium, Ind. J. Chem. Sec.A, 2019, 58A, 29-35.
  20. S. Pramanik, P. Das, Metal-Based Nanomaterials and their polymer nanocomposites (Chapter 3), in Nanomaterials and Polymer nanocomposite, Elsevier, 2018, 91-121.
  21. A. Puzari, N. Shahnaz, P. Das, Palladium complexes with two unsymmetrical Schiff base ligands: Highly active catalyst for activation of chloroarenes in Suzuki-Miyaura reaction, J. Indian Chem. Soc. 2018, 95,837-842.
  22. D. Borah, M. Hazarika, P. Tailor, A. R. Silva, B. Chetia, G. Singaravelu, P. Das, Starch-templated bio-synthesis of gold nanoflowers for in vitro antimicrobial and anticancer activities, Applied Nanoscience, 2018, 8(3), 241-253.
  23. M. Hazarika, D. Borah, P. Bora, A. R. Silva, P. Das, Biogenic synthesis of palladium nanoparticles and their applications as catalyst and antimicrobial agent, PLOS ONE 2017, 12(9): e0184936.
  24. S. Kolita, L. Dutta, P. Das, P. J. Bhuyan, One-Pot Synthesis of Unsymmetrical Bis(4-Hydroxycoumarin-3-yl)methanes, Synlett, 2017, 28(17), 2291-2294.
  25. S. Pramanik, M. Das, D. Das, P. Das, Sustainable Redox Chemistry Route to Multifaceted Fe-Pd Heteronanostructure: Delving into the Synergistic Influence in Catalysis, Chem. Select , 2017, 2(16) 4577-4585.
  26. P. Das,   B. Chetia, R. Prasanth, J. Madhavan, G. Singaravelu,G. Benelli, K. Murugan, Green nanosynthesis and functionalization of gold nanoparticles as PTP 1B inhibitors, J. Cluster Science, 2017, 28, 2269-2277.
  27. D. Sahu, A. R. Silva, P. Das, Facile synthesis of palladium nanoparticles supported on silica: An efficient phosphine-freeheterogeneous catalyst for Suzuki coupling in aqueous media, Catalysis Communications, 2016, 86, 32-35.
  28. N. Shahnaz, A. Puzari, B. Paul, P. Das, Activation of aryl chlorides in water for Suzuki coupling with a hydrophilic salen-Pd(II) catalyst, Catalysis Communications, 2016, 86, 55-58.
  29. P. Das, W. Linert, Schiff base-derived homogeneous and heterogeneous palladium catalysts for the Suzuki-Miyaura reaction, Coord. Chem. Rev. 2016, 1-23.
  30. B. Banik, A. Tairai,  P. K. Bhattacharyya, P. Das,  Excellent Suzuki–Miyauracatalytic activity of a new Pd(II) complex with sulfonamide–Schiff base ligand, Appl. Organomet. Chem. 2016, 30, 519-52.
  31. P. Sharma, D. J. Borah, P. Das, M. R. Das, Cationic and anionic dye removal from aqueous solution using montmorillonite clay: evaluation of adsorption parameters and mechanism, Desalination and water treatment, 2016, 57(18) 8372-838.
  32. D. Sahu, A. R. Silva, P. Das, A novel Fe(III)-based heterogeneous catalyst for aqueous oxidation of alcohols using molecular oxygen, RSC Advances, 2015, 78553-78560.
  33. N. Shahzaz, P. Das, Palladium complex containing two sterically hindered ligands as highly efficient catalyst for Suzuki-Miyaura reaction, Appl. Organomet. Chem. 2015, 829-833.
  34. D. Sahu, P. Das, Phosphine-stabilized Pd nanoparticles supported on silica as highly active catalyst for Suzuki-Miyaura cross-coupling reactions of aryl chlorides, RSC Advances, 2015, 5, 3512-3520.
  35. D. Sahu, C. Sarmah, P. Das, A highly efficient and recyclable silica-supported palladium catalysts for alcohol oxidation reaction, Tetrehedron Letter, 2014, 55, 3422-3425.
  36. D. Sahu, B. Banik, M. Borah, P. Das, Efficient Alcohol Oxidation Reaction Catalyzed by a Cobalt(II) and an Iron(III) complexes containing DPEPhos Ligand, Letters in Org. Chem, 2014, 11, 671-676.
  37. S. N. Orlyk, P. Das, L. M. Alekseenko, A, Y. Kapran, Activity of rhodium and palladium catalysts immobilized on functionalized silica in the decomposition and carbonylation of methanol, Theoretical and Experimental Chemistry, 49, 2013, C 236-241.
  38. C. Sarmah, D. Sahu, P. Das , An effective strategy for immobilizing a homogeneous palladium complex onto silica: Efficient and reusable catalyst for Suzuki-Miyaura reactions, Catal. Commun. 2013 ,41, 75-78.
  39. N. Shahnaz, B. Banik, P. Das, A highly efficient Schiff-base derived palladium catalyst for the Suzuki-Miyaura reactions of aryl chlorides, Tetrahedron Letter, 54, 2013,2886-2889.
  40. B. Banik, A. Tairai, N. Shahnaz, P. Das, Palladium(II) complex with a potential N4-type Schiffbase ligand as highly efficient catalyst for Suzuki-Miyaura reactions in aqueous medi, Tetrahedron Letter, 2012, 53, 5627–5630.
  41. C. Sarmah, D. Sahu, P. Das, Anchoring palladium acetate onto imine-functionalized silica gel through coordinative attachment: An effective recyclable catalyst for the Suzuki-Miyaura reaction in aqueous-isopropanol, Catal. Today, 198, 2012, 197.
  42. M. Borah, P. K. Bhattacharyya, P. Das, Iron carbonyl complex containing bis[2- (diphenylphosphino)phenyl]ether enhancing efficiency in the palladium-catalyzed Suzuki-Miyaura reaction, Appl. Organomet. Chem., 2012, 26, 130-134.
  43. A. Tairai, C. Sarmah, P. Das, A highly efficient catalytic system for microwave-assisted Suzuki– Miyaura reactions as well as room temperature homocoupling reactions of arylboronic acids in aqueous media, Ind. J. Chem. Sec. B, 2012, 51B, 843-848.
  44. A. Tairai, C. Sarmah, P. K.. Bhattacharyya, P. Das, Primary amine-based palladium(II) complexes as catalysts for Suzuki-Miyaura reaction: Experimental and theoretical investigations on the effects of substituents on nitrogen atom, Indian J. Chem. Sec. A, 51A, 2012, 1545-1552
  45. A. Tairai, C. Sarmah, N. Shahnaz, P. Das, Diphenyl-2-pyridylphosphine based palladium catalysts for the Suzuki-Miyaura reactions in environment friendly solvents, Lett. Org. Chem., 2012, 9, 509 -515.
  46. P. Das, M. Borah, F. Michaud, F. Petillon, P. Schollhammer, Phosphorus-carbon (P-CPy) bond cleavage on reacting the diphenyl-2-pyridylphosphine with triiron- dodecacarbonyl, Inorg. Chim. Acta, 2011, 376, 641.
  47. C. Sarmah, M. Borah, P. Das, Iron(0), Rhodium(I) and Palladium(II) complexes with p-(N,Ndimethylaminophenyl) diphenylphosphine and the application of the palladium complex as catalyst for Suzuki-Miyaura cross-coupling reaction, Applied Organometallic Chemistry, 2011, 25, 552-558.
  48. P. Das, C. Sarmah, A. Tairai, U. Bora, Highly efficient amine-based catalytic system for room temperature Suzuki-Miyaura reactions of aryl halides with arylboronic acids, Applied Organometallic Chemistry, 2011, 25, 283-288.
  49. P. Das, M. Borah, C. Sarmah, P. K. Gogoi, L. M. Alekseenko, S. M. Orlyk, Synthesis of a rhodium(I) carbonyl complex with a chiral aminodiphosphine ligand and its immobilization onto amino-propylfunctionalized silica gel, J. Coord. Chem., 2010, 63, 7, 1107-1117.
  50. P. Das, U. Bora, A. Tairai, C. Sharma, Triphenylphosphine chalcogen-ides as efficient ligands for room temperature palladium(II) cataly-zed Suzuki-Miyaura reaction, Tetrahedron. Letter 2010, 51, 1479-1482.
  51. P. Das, P. P. Sarmah, M. Borah, A. K. Phukan, Low-spin, mononuclear, Fe(III) complexes with P,N donor hemilabile ligands: A combined experimental and theoretical study, Inorganica Chimica Acta, 2009, 362, 5001-5011.
  52. P. Das, A. R. Silva, A. Carvalho, J. Pires, C. Freire, Organo-functionalized mesoporous supports for Jacobsen-type catalyst: Laponite versus MCM-4, J. Material Science, 2009, 44, 11, 2865- 2875.
  53. P. Das, A. R. Silva, A. Carvalho, J. Pires, C. Freire, Chiral Mn(III) salen complex, Enantioselective epoxidation, covalent anchoring, Laponite, MCM-41, FSM-16, Catalysis Letter, 2009, 129, 367-375.
  54. P.Das, A. R. Silva, A. P. Carvalho, J. Pires, C. Freire, Post-Synthesis organo-sylanation of mesostructured FSM-16 for chiral Mn(III) salen catalyst anchoring, Colloids and Surfaces A: A Physicochem. Eng. Aspects, 2008, 329, 3, 190-197.
  55. P. Das, J. Baruah, P. Tamuli, Synthesis, spectroscopic, thermogravi-metric and electrochemical characteri-sation of triphenylphosphine-oxide complexes of the type [MClx(Ph3PO)6-x] [M = Cu(II), Co(II), x = 2; M = Fe(III), x = 3], Asian J Chemistry, 2008, 20, 8, 5958
  56. P. Das, I. K.Biernacka, A. R. Silva, A. P. Carvalho, J. Pires, C. Freire, Chiral Mn(III) Salen Complexes Encapsulated into Aluminium Pillared Clay and their Activity as Catalyst for Epoxidation of Styrene, J. Mol Catal: Chemical, 2006, 248, 135-143.
  57. P. Das, J. F. Capon, F. Gloaguen, F. Y. Pétillon, P. Schollhammer, J. Talarmin, K. W. Muir, Di-iron aza diphosphido complexes: mimics for the active site of Fe-only hydrogenase, and effects of changing the coordinating atoms of the bridging ligand in [Fe2{µ-(ECH2)2NR}(CO)6], Inorganic Chemistry, 2004, 43 (26), 8203-8205.
  58. D. K. Dutta, J. D. Woollins, A. M. Z. Slawin, D. Konwar, P. Das, M. Sharma, P. Bhattacharyya, S. M. Aucott, An alternative strategy to an electron rich phosphine based carbonylation catalyst, Dalton Transaction, 2003, 13, 2674 – 2679.
  59. P. Chutia, M. Sharma, P. Das, N. Kumari, J. D. Woollins, A. M. Z. Slawin, D. K. Dutta, Carbonyl complexes of ruthenium(II) with unsymmetrical phosphine-phosphine-sulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n = 1 - 4, Polyhedron, 2003, 22, 19, 2725-2730.
  60. P. Das, M. Borauh, N. Kumari, M. Sharma, D. Konwar, D. K. Dutta, Rhodium Nitrone Complexes: Efficient Catalysts for Carbonylation of Methanol, J. Molecular Catalysis A: Chemical, 2002, 178, 283-287.
  61. P. Das, M. Sharma, N. Kumari, D. Konwar, D. K. Dutta, Synthesis and Characterization of Ruthenium(II) Complexes of different types of Potential Hemilabile P-O and P-S Donors Ligands, Indian Journal of Chem. Sec A: 41A, 2002, 560-562.
  62. N. Kumari, M. Sharma, P. Das, D. K. Dutta, Carbonylrhodium Complexes of Pyridine Ligands and their Catalytic Activity towards Carbonylation of Methanol, Applied Organometallic Chemistry, 2002, 16 (5), 258 -264.
  63. P. Das, P. Chutia, D. K. Dutta, Efficient Carbonylation of Methanol Catalyzed by Rhodium(I) Complexes containing Cyclooctadiene and Triphenylphosphinechalcogenide, Chemistry Letter, 2002, 7, 766-767.
  64. M. Sharma, N. Kumari, P. Das, P. Chutia, D. K. Dutta, Catalytic activity of dicarbony-lrhodium complexes of amino benzoic acid ligands for carbonylation of methanol, J. Molecular Catalysis A: Chemical, 2002,188, 25-35.
  65. P. Das, D. Konwar, M. Sharma, N. Kumari, D. K. Dutta, Synthesis and Reactivity of Rhodium(I) Carbonyl Complexes of Ether-phosphine Ligands and their Catalytic Activity, Applied Organometallic Chemistry, 2002, 16, 302-306.
  66. P. Das, D. Konwar and D. K. Dutta, Rhodium Complexes of Diphenylphosphine(ethylthio) ethane, Indian Journal of Chemistry, Sec A: 40A, 2001, 626-629.
  67. P. Das, D. Konwar, P. Sengupta, D.K. Dutta, Rhodium (I) Carbonyl Complexes of Triphenylphosphine chalcogenides and their Catalytic Activity, Transition Metal Chemistry, 2000, 25, 426-429.

PATENTS:

  1. An Improved Process for Carbonylation of Methanol using Novel Rhodium Metal Complexes as Catalyst, Application 474/DEL/2002 published 2007-04- 27, filed 2002-04-22, Inventor: D. K. Dutta, M. Sharma, P. Das, N. Kumari, M. Baruah, D. Konwar, No of Pages : 20, No of Claims : 6; Classification: C07C 51/00.
  2. An Improved Process for Producing Carboxylic Acid and its Ester using Electron rich Rhodium Phosphine Based Carbonyl Complexes as Catalysts, Application 219/DEL/2003 published 2007-05-04, filed 2003-03-05, Inventor:D. K. Dutta, J. D. Woollins, A. M. Z. Slawin, D. Konwar, P. Das, M. Sharma, P. Bhattacharyya, S. M. Aucott, No of Pages : 16 No of Claims : 6 , International Info Classification: C07C 051/235.
  3. A Process for the Preparation of Electron Rich Rhodium Carbonyl Complexes Containing Phosphine Based Chelating Ligand, Application 211/DEL/2003 published 2007-08-17, filed 2003-03-05,Inventor: D. K. Dutta, J. D. Woollins, A.M.Z. Slawin, D. Konwar, P. Das, M. Sharma, P. Bhattacharyya, S. M. Aucott. International Info Classification: C01G 55/00.
  4. A Process for the Preparation of Novel Rhodium Carbonyl Complexes, Application 475/DEL/2002 published 2007-04-27, filed 2002-04-22 , Inventor: D. K. Dutta, M. Sharma, P. Das, N. Kumari, M. Baruah, D. Konwar, No of Pages : 14 No of Claims : 10, International Info Classification: C07F 15/00
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