Professor
Department of Chemical Sciences
📍 5F9, Academic Block I
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Research Area
Organometallic Synthesis & Catalysis, Main Group Chemistry and Macrocyclic Chemistry
Research Interests
(1) Bicyclic (Alkyl)(Amino)Carbene (BICAAC) Supported Low Valent Compounds: Low valent main group and transition element species (radicals or zero-valent compounds) are of great interests due to their unique electronic structure and high reactivity. Often, these species require kinetic stabilization by the supporting ligand. We exploit strong ambiphilic BICAAC to stabilize low valent transition metals and main group complexes (Mn, Ni, Cu, Ir, Zn, B, Si, P, Sb) including investigation of their bonding behaviour, photophysical aspects and reactivity.
We also exploited BICAAC as metal free organocatalyst to perform hydroboration, alcohol dehydrogenation and hydrogen atom transfer processes.
(2) Chemistry of Main Group (Mg, B, Al) and Zn Cations: Potent Lewis Acidic Catalysts
Synthesis of highly Lewis acidic low coordinated cationic complexes of Mg, B, Al and Zn supported by bulky N2P or N3P2 ligands is major emphasis of this research project. These newly discovered cationic complexes proved to be highly efficient catalysts for hydroelementation reactions.
(3) Inorganic Macrocycles, Pyridinophanes and Cryptands
Phosph(III)azane macrocycles and cryptands are major theme of this research area. Use of templates in assembling macrocycles and cryptands and host-guest chemistry has opened new directions. We are also involved in exploring diarylazo containing P/N macrocycle for their photoswitching behaviour.
2022 - 2026 : Editorial Advisory Board Member, ChemistrySelect, Published by Wiley-VCH on behalf of Chemistry Europe.
Since 2022 : Professor, IISER Mohali
2016 - 2022 : Associate Professor, IISER Mohali
2008 - 2016 : Assistant Professor, IISER Mohali
2007 : Post-doctoral fellow, University of Cambridge, UK, (Advisor: Prof. Dominic S. Wright)
2006 : Post-doctoral fellow, University of Goettingen, Germany, (Advisor: Prof. Dr. Herbert W. Roesky)
2003 - 2006 : Ph.D., University of Goettingen, Germany, (Supervisor: Prof. Dr. Herbert W. Roesky)
2000 - 2002 : M.Sc., Indian Institute of Technology Kanpur
1998 - 2000 : B.Sc. (Hons), Banaras Hindu University
Elected as Young Associate of the Indian Academy of Sciences, Bangalore for 2009-2013.
Graduate student fellowship from the Graduiertenkolleg (GRK782) Spektroskopie und Dynamik Molekularer Aggregate, Ketten und Knäuel (January 2003 – January 2006).
Qualified diploma examination in Chemistry, 2002 conducted by the Institute of Inorganic Chemistry, University of Goettingen, Germany.
“Best Project Award” for the MSc project, Department of Chemistry, IIT-Kanpur 2002.
Qualified CSIR-UGC (Council for Scientific and Industrial Research-University Grants Commission) test for junior research fellowship (JRF) in 2002.
Qualified Graduate Aptitude Test for Engineering (GATE) in Chemistry in 2002.
Summer visiting student fellowship of the Indian Academy of Sciences in 2001.
Kundu Adhikari Singh Adhikari A M S D S. Bansal A. Biswas. Ambiphilic Alcohol Dehydrogenation by BICAAC Mimicking Metal-Ligand Cooperativity. ACS Catalysis 14:8087–8095, 2024.
M Kaur, M Adhikari, K K Manar, Y Yogesh, D Prakash and S Singh. BICAAC-Derived Covalent and Cationic Ir(I) Complexes: Application of Ir(BICAAC)Cl(COD) Complexes as Catalysts for Transfer Hydrogenation and Hydrosilylation Reactions. Inorganic Chemistry, 2024.
Rawat Singh S S M. Bhandari M. Kaur. Highly Electrophilic Mononuclear Cationic Aluminum Alkoxide Complexes: Syntheses, Reactivity and Catalytic Applications. Chemistry A European Journal 29:e202301229, 2023.
Mamta Bhandari, Mandeep Kaur, Sandeep Rawat and Sanjay Singh. Hydroboration of Imines and Alkynes Catalyzed by Electronically Unsaturated Aluminum Hydride and Methyl Aluminum Cations. Inorganic Chemistry 62(17):6598–6607, 2023.
Sandeep Kumar Thakur, Mandeep Kaur, Krishna Kumar Manar, Manu Adhikari, Angshuman Roy Choudhury and Sanjay Singh. Well-Defined Ni (0) and Ni (II) Complexes of Bicyclic (Alkyl)(Amino) Carbene (MeBICAAC): Catalytic Activity and Mechanistic Insights in Negishi Cross-Coupling Reaction. Chemistry–A European Journal 28(59):e202202237, 2022.
Sandeep Rawat, Mamta Bhandari, Billa Prashanth and Sanjay Singh. Three Coordinated Organoaluminum Cation for Rapid and Selective Cyanosilylation of Carbonyls under Solvent-Free Conditions. ChemCatChem 12(9):2407–2411, 2020.
Deependra Bawari, Chandrakala Negi, Vishal Kumar Porwal, Satyam Ravi, KR Shamasundar and Sanjay Singh. Aluminum containing molecular bowls and pyridinophanes: use of pyridine modules to access different molecular topologies. Dalton Transactions 48(21):7442–7450, 2019.
Deependra Bawari, Chandrakala Negi, Kuldeep Jaiswal, Billa Prashanth, Angshuman Roy Choudhury and Sanjay Singh. Group 13 element containing conformationally rigid “N–E–N” heteroatomic bridged [3.3](2, 6) pyridinophanes (E= B, Al). Chemical Communications 54(64):8857–8860, 2018.
Billa Prashanth, Mamta Bhandari, Satyam Ravi, KR Shamasundar and Sanjay Singh. Electronically Unsaturated Three-Coordinate Aluminum Hydride and Organoaluminum Cations. Chemistry–A European Journal 24(19):4794–4799, 2018.
Deependra Bawari, Billa Prashanth, Satyam Ravi, KR Shamasundar, Sanjay Singh and Dominic S Wright. Two different pathways in the reduction of [(S=) PCl ($\mu$-NtBu)] 2 with Na. Chemistry–A European Journal 22(34):12027–12033, 2016.