Dr. Somnath Maji. Research Interests

Transcription

1 Dr. Somnath Maji Assistant Professor Department of Chemistry Indian Institute of Technology Hyderabad Kandi- Village Sangareddy- Mandal Medak-District Telangana, INDIA Phone No: +91 (040) (O) Research Interests Positions Synthetic Coordination/Bio-Inorganic/Organometallic Chemistry. Metal catalyzed Water Splitting/Carbon Dioxide Reduction/Hydrogen Generation. Applications of molecular catalysts in functional devices for production of solar fuels. Education Ø Assitant Professor: July, Present Indian Institute of Technology Hyderabad Ø Postdoctoral Researcher: August, 2013 July, 2015 Department of Photochemistry and Molecular Science, Ångström Laboratory (Swedish Consortium for Artificial Photosynthesis Fellowship). Department of Photochemistry and Molecular Science Ångström Laboratory, Uppsala University, P.O. Box 523 S-75120, Uppsala, SWEDEN Supervisor: Prof. Sascha Ott Ø Postdoctoral Researcher: September, 2009 August, 2013 in ICIQ. (ICIQ Post Doctoral Fellowship). Institute of Chemical Research of Catalonia (ICIQ) Campus Universitari de Tarragona Av. Paisos Catalans 16, E Tarragona, SPAIN. Supervisor: Prof. Antoni Llobet Ø Ph.D : 2009, Indian Institute of Technology, Bombay, Mumbai, INDIA Supervisor: Prof. G. K. Lahiri Dissertation: Valence State Distribution and Mixed Valency in Ruthenium Complexes with Redox Sensitive Ligands. Ø M. Sc : Burdwan University, West Bengal, India, 2003 (Specialization in Inorganic Chemistry) Ø B. Sc : Raghunathpur College, Burdwan University, West Bengal, India, 2001 SOMNATH MAJI 1

2 Honours and Achievements Ø Received Torres Quevedo del Ministerio de Ciencia e Innovación PhD Positions Available Candidates with CSIR-JRF are encouraged to apply with their curriculum vitae. SOMNATH MAJI 2

3 36. Analysis of Hydrogen-Bonding Effects on Excited-State Proton-Couple Electron Transfer from a Series of Phenols to a Re(I) Polypyridyl Complex P. Dongare, A. G. Bonn, S. Maji and L. Hammarström J. Phys. Chem. C 2017, 121 (23), Dynamics and Photochemical H 2 Evolution of Dye/ NiO Photocathodes with a Biomimetic FeFe-catalyst L. Antila, P. Ghamgosar, S. Maji, H. Tian, S. Ott, and L. Hammarström ACS Energy Lett. 2016, 1 (6), SOMNATH MAJI 3

4 34. Judicious Ligand Design in Ruthenium Polypyridyl CO2 Reduction Catalysts to Enhance Reactivity by Steric and Electronic Effects B. A. Johnson, H. Agarwala, T. A. White, E. Mijangos, S. Maji, and S. Ott Chem. Eur. J. 2016, 22 (42), SOMNATH MAJI 4

5 (Link: Ruthenium_Catalysts_for_CO2_Reduction.html) SOMNATH MAJI 5

6 33. Establishing the Family of Diruthenium Water Oxidation Catalysts Based on the Bis(bipyridyl)pyrazolate Ligand System S. Neudeck, S. Maji, I. Lopez, S. Decherta, J. Benet-Buchholz, F. Meyer and A. Llobet Inorg. Chem. 2016, 55 (5), Direct Evidence of a Tryptophan Analogue Radical formed in a Concerted Electron Proton Transfer Reaction in Water P. Dongare, S. Maji and L. Hammarström J. Am. Chem. Soc. 2016, 138 (7), SOMNATH MAJI 6

7 31. Activating a Low Overpotential CO2 Reduction Mechanism by a Strategic Ligand Modification on a Ruthenium Polypyridyl Catalyst B. A. Johnson*, S. Maji*, H. Agarwala, T. A. White, E. Mijangos and S. Ott *(Equal Contribution) Angew. Chem. Int. Ed., 2016, 55, Efficient light-driven water oxidation catalysis by dinuclear Ru complexes S. Berardi, L. Francàs, S. Neudeck, S. Maji, J. Benet-Buchholz, F. Meyer and A. Llobet Chem. Sus. Chem., 2015, 8, SOMNATH MAJI 7

8 29. Highly Efficient Binuclear Ruthenium Catalyst for Water Oxidation A. C. Sander, S. Maji, L. Francàs, T. Böhnisch, S. Decherta, A. Llobet and F. Meyer Chem. Sus. Chem., 2015, 8, SOMNATH MAJI 8

9 28. Tunable Electrochemical and Catalytic Features of BIAN- and BIAO- Derived Ruthenium Complexes A. Singha Hazari, A. Das, R. Ray, H. Agarwala, S. Maji, S. M. Mobin and G. K. Lahiri Inorg. Chem., 2015, 54, The Oxo-bridge Scenario Behind Single Site WOCs I. López, S. Maji, J. Benet-Buchholz and A. Llobet Inorg. Chem., 2015, 54, SOMNATH MAJI 9

10 26. Direct observation of key catalytic intermediates in a photoinduced proton reduction cycle with a diiron carbonyl complex M. Mirmohades, S. Pullen, M. Stein, S. Maji, S. Ott, L. Hammarström, and R. Lomoth J. Am. Chem. Soc., 2014, 136, Mechanistic Insights into Electrocatalytic CO2 Reduction within [Ru II (tpy)(nn)x] n+ Architectures T. A. White, S. Maji, and S. Ott Dalton Trans., 2014, SOMNATH MAJI 10

11 24. Competitive Oxygen-18 Kinetic Isotope Effects on Water Oxidation by Monomeric and Dimeric Ruthenium Catalysts A. M. Angeles-Boza, M. Zahid Ertem, R. Sarma, C. H. Ibañez, S. Maji, A. Llobet, C. J. Cramer and J. P. Roth Chem. Sci., 2014, 5, New Powerful and Oxidatively Rugged Dinuclear Ru WOCs: Control of Mechanistic Pathways by Tailored Ligand Design S. Neudeck, S. Maji, I. Lopez, S. Meyer, F. Meyer and A. Llobet J. Am. Chem. Soc., 2014, 136, SOMNATH MAJI 11

12 22. Molecular Water Oxidation Mechanisms Followed by Transition Metals: State of the Art X. Sala, S. Maji, R. Bofill, J. Garc a-ant n, L. Escriche and A. Llobet Acc. Chem. Res., 2014, 47, A Self-Improved Water-Oxidation Catalyst: Is One Site Really Enough? I. López, M. Z. Ertem, S. Maji, J. Benet-Buchholz, A. Keidel, U. Kuhlmann, P. Hildebrandt, C. J. Cramer, V. S. Batista and A. Llobet Angew. Chem. Int. Ed., 2014, 53, SOMNATH MAJI 12

13 20. Synthesis, Characterization and Reactivity of Dyad Ru-Based Molecules for Light-Driven Oxidation Catalysis P. Farràs, S. Maji, F. Bozoglian, J. Benet-Buchholz and A. Llobet Chem. Eur. J., 2013, 19, Mononuclear Ru water oxidation catalysts: discerning between electronic and hydrogen bonding effects S. Maji, I. López, J. Benet-Buchholz and A. Llobet Inorg. Chem., 2013, 52, 3591 SOMNATH MAJI 13

14 18. Electronic structure and catalytic aspects of [Ru(tpm)(bqdi)(Cl/H 2 O)] n, tpm = tris(1-pyrazolyl)methane and bqdi = o-benzoquinonediime H. Agarwala, F. Ehret, A. Dutta Chowdhury, S. Maji, S. M. Mobin, W. Kaim and G. K. Lahiri Dalton Trans., 2013, Synthesis, characterization of new isomeric Ru(Cl) 2 (H3p)(DMSO) 2 complexes, their reactivity and linkage isomerization S. Roeser, S. Maji, J. Benet-Buchholz, J. Pons and A. Llobet Eur. J. Inorg. Chem., 2013, 232 SOMNATH MAJI 14

15 16. Ligand Geometry Directs O-O Bond Formation Pathway in New trans- RuHbpp Based Water Oxidation Catalyst S. Maji, L. Vigara, F. Cottone, F. Bozoglian, J. Benet-Buchholz and A. Llobet Angew. Chem. Int. Ed., 2012, 51, Correspondence of Ru III Ru II and Ru IV Ru III Mixed Valent States in a Small Dinuclear Complex H. Agarwala, T. Scherer, S. Maji, T. K. Mondal, S. M. Mobin, J. Fiedler, F. A. Urbanos, R. Jiménez-Aparicio, W. Kaim and G. K. Lahiri Chem. Eur. J., 2012, 18, 5667 SOMNATH MAJI 15

16 14. Ruthenium Nitrosyls in [Ru II ([9]aneS 3 )(bpy)(no) +/. ] n and [Ru II ([9]aneS 3 ) (pap)(no) +/. ] n ([9]aneS 3 : 1,4,7-trithiacyclononane, bpy: 2,2 -bipyridine, pap: 2-phenylazopyridine). Electronic Structure and Reactivity Aspects P. De, S. Maji, A. Dutta Chowdhury, S. M. Mobin, T. K. Mondal and G. K. Lahiri Dalton Trans., 2011, Reductive Approach to Mixed Valency (n=1-) in the Pyrazine Ligand- Bridged [(acac) 2 Ru(µ-L 2- )Ru(acac) 2 ] n (L 2- = 2,5-Pyrazine-dicarboxylate) through Experiment and Theory A. Das, T. Scherer, S. Maji, T. K. Mondal, S. M. Mobin, F. A. Urbanos, R. Jiménez-Aparicio, W. Kaim, and G. K. Lahiri Inorg. Chem., 2011, 50, 7040 SOMNATH MAJI 16

17 12. Ligand Influence Over the Formation of Dinuclear [2+2] versus Trinuclear [3+3] Cu I Schiff Base Macrocyclic Complexes A. Arbuse, S. Mandal, S. Maji, M. A. Martínez, X. Fontrodona, D. Utz, F. W.Heinemann, S. Kisslinger, S. Schindler, X. Sala and A. Llobet Inorg. Chem., 2011, 50, Stabilization of {RuNO} 6 and {RuNO} 7 States in [Ru II (trpy)(bik)(no)] n+ (trpy = 2,2 :6,2 -Terpyridine, bik = 2,2 -Bis(1-methylimidazolyl)ketone). Synthesis, Reactivity and Photorelease of Metal Bound Nitrosyl P. De, B. Sarkar, S. Maji, A. K. Das, E. Bulak, S. M. Mobin, W. Kaim and G. K. Lahiri Eur. J. Inorg. Chem., 2009, 2702 SOMNATH MAJI 17

18 10. Intramolecular Valence and Spin Interaction in meso and rac Diastereomers of a p-quinonoid Bridged Diruthenium Complex D. Kumbhakar, B. Sarkar, S. Maji, S. M. Mobin, J. Fiedler, F. A. Urbanos, R. Jimenez-Aparicio, W. Kaim and G. K. Lahiri J. Am. Chem. Soc., 2008, 130, Valence State Analysis via Spectroelectrochemistry in Differently Quinonoid Bridged Diruthenium Complexes [(acac) 2 Ru(µ-L)Ru(acac) 2 ] n+ (n = +2, +1, 0-1, -2) S. Ghumaan, B. Sarkar, S. Maji, V. G. Puranik, J. Fiedler, F. A. Urbanos, R. Jimenez-Aparicio, W. Kaim and G. K. Lahiri Chem. Eur. J., 2008, 14, SOMNATH MAJI 18

19 8. Valence State Alternatives in Diastereoisomeric Complexes [(acac) 2 Ru(µ- QL)Ru(acac) 2 ] n (QL 2- = 1,4-Dioxido-9,10-anthraquinone, n = +2, +1, 0-1, -2) S. Maji, B. Sarkar, S. M. Mobin, J. Fiedler, F.A. Urbanos, R. Jimenez- Aparicio, W. Kaim and G. K. Lahiri Inorg. Chem., 2008, 47, Formation, Reactivity and Photorelease of Metal Bound Nitrosyl in [Ru(trpy)(L)(NO)]n+ (trpy = 2,2 :6 2 -Terpyridine, L = 2- Phenylimidazo[4,5-f]1,10-phenanthroline) S. Maji, B. Sarkar, M. Patra, A. K. Das, S. M. Mobin, W. Kaim, and G. K. Lahiri Inorg. Chem., 2008, 47, 3218 SOMNATH MAJI 19

20 6. Synthesis, structure and electrochemistry of CO incorporated diruthenium metallacyclic compounds [Ru 2 (CO) 6 {µ-h 1 : h 1 : h 2 : h 2-1,4- Fc 2 C 5 H 2 O}] and [Ru 2 (CO) 6 {µ-h 1 : h 1 : h 2 : h 2-1,5-Fc 2 C 5 H 2 O}] P. Mathur, S. Chatterjee, A. Das, G. K. Lahiri, S. Maji and S. M. Mobin J. Organomet. Chem., 2007, 692, Non-innocent behaviour of ancillary and bridging ligands in homovalent and mixed-valent ruthenium complexes [A 2 Ru(µ-L)RuA 2 ] n, A = 2,4- pentanedionato or 2-phenylazopyridine, L 2- = 2,5-bis(2- oxidophenyl)pyrazine S. Maji, B. Sarkar, S. M. Mobin, J. Fiedler, W. Kaim and G. K. Lahiri Dalton Trans., 2007, 2411 SOMNATH MAJI 20

21 4. Synthesis and Spectro-electrochemical Aspects of [Ru II (trpy) (pdt)(x)] n+ (trpy = 2,2 :6 2 -Terpyridine, pdt = 3-pyridyl-5,6- diphenyl-as-triazine, X = Cl -, CH 3 CN, NO 2-, NO +, NO. ). Electrophilicity of {Ru II -NO + } and Photolability of {Ru II -NO. } S. Maji, C. Chatterjee, S. M. Mobin, and G. K. Lahiri Eur. J. Inorg. Chem., 2007, Valence State Distribution in Ruthenium-o-Quinonoid Systems [Ru(trpy) (Cl)(L 1 )] + and [Ru(trpy)(Cl)(L 2 )] + [2] + where L1 = o-iminobenzoquinone, L2 = o-diiminobenzoquinone and trpy = 2,2 :6 2 -Terpyridine S. Maji, S. Patra, S. Chakraborty, D. Janardanan, S. M. Mobin, R. B. Sunoj and G. K. Lahiri Eur. J. Inorg. Chem., 2007, 314 SOMNATH MAJI 21

22 2. Metal-Induced Reductive Ring Opening of 1,2,4,5-Tetrazines: Three Resulting Coordination Alternatives, Including the New Non-Innocent 1,2-Diiminohydrazido(2-) Bridging Ligand System S. Maji, B. Sarkar, S. Patra, J. Fiedler, S. M. Mobin,V. G. Puranik, W. Kaim and G. K. Lahiri Inorg. Chem., 2006, 45, Controlling Metal/Ligand/Metal Oxidation State Combinations by Ancillary Ligand (L) Variation in the Redox Systems [L 2 Ru(µboptz)RuL 2 ] n, boptz = 3,6-bis(2-oxidophenyl)-1,2,4,5-tetrazine and L = acac -, bpy or pap (2-phenylazopyridine) S. Patra, B. Sarkar, S. Maji, J. Fiedler, F. A. Urbanos, R. Jimenez-Aparicio, W. Kaim, and G. K. Lahiri Chem. Eur. J., 2006, 12, 489 SOMNATH MAJI 22