Fascinated in modelling functional metal-organic fragments, particularly stabilizing organic radicals coordinated to transition metal ions in substantiating their role in multi-component electron transfer, aromatic ring cleavage, C-H activation, redox cascade, concerted proton-electron transfer (CPET) reactions, furnishing mixed valence system based on metal and ligand skeletons and catalysis. Some of the results are highlighted below:
A. An Example of a Transition from a Closed Shell Singlet to an Open Shell Triplet Diradical Form: Stabilization of the Excited Open Shell Singlet Form (Inorg. Chem. 2026, 65, 19, 10448–10465)
B. 1,2-Diimino-9,10-anthraquinone-semiquinonate Anion and 1-Aminyl-2-amino-9,10-anthraquinone π-Radical Complexes of Ruthenium and Osmium: An Account of Electronic Structures (Inorg. Chem. 2026, 65, 9, 4980–4996)
C. Coligands Controlled Reactivities of Ruthenium (II) Precursors: Anti-ferromagnetically Coupled Ruthenium (III)-Phenoxyl versus Ruthenium (II)-Phenoxyl Forms (Inorg. Chem. 2024, 63, 1, 229–246)
D. O2 Activation by a Coordinated -NH- Function: Hydrogen Atom Transfer and Aromatic Ring Oxidation (Inorg. Chem. 2023, 62, 51, 21147–21155)
E. ONS-Coordinated Open-Shell π Radical and an Oxidative Aromatic Ring Cleavage Reaction (Inorg. Chem. 2017, 56, 3363-3376)
F. Redox-Active Cascade Precursors and Isolation of Metal Free Organic Radicals and New Organic Derivatives (Inorg. Chem. 2017, 56, 8878-8888)
With another redox active fragment (Inorg. Chem. 2017, 56, 13194-13204)
G. Redox Cascades and Making of a C-C and C-N Bonds (J. Org. Chem. 2019, 84, 4, 1871-1881)
H. Redox-active Ligands in Stabilizing Metal Based Mixed Valence System (Chem. Eur. J. 2019, 25, 14901-14911)
I. Proton-Coupled Redox Reactions and Isolation of Reactive Phenoxyl Radicals (Inorg. Chem. 2018, 57, 11948-11960)
Proton coupled oxidation of aryl amine to aryl aminyl radical (Inorg. Chem. 2019, 58, 15060-15077)
J. Organic Radicals and C-H Activation Reactions (Inorg. Chem. 2016, 55, 4746-4756) and (Dalton Trans (comm)., 2020,49, 5015-5019)
