Tapan Kanti Paine

Four mononuclear copper(II) complexes, [(DPA-OH)Cu(CHOH)(ClO)](ClO) (), [(DPA-OMe)Cu(CHOH)(ClO)](ClO) (), [(6-Amide-DPA-OMe)Cu](ClO) () and [(6-Amide-DPA-OMe)Cu](ClO) (), of flexidentate ligands bearing hemilabile (hydroxy)methoxyethyl and/or amide group on DPA (di(2-picolyl)amine) backbone were isolated to explore...

Two mononuclear iron(II) complexes, [(6-amide-BPMEN)Fe](OTf) () and [(6-amide-Me-BPMEN)Fe(OTf)](OTf) (), supported by two BPMEN-derived (BPMEN = ,-dimethyl-,-bis(pyridine-2-yl-methyl)ethane-1,2-diamine) ligands bearing one or two amide functionalities have been isolated to study their reactivity...

A cobalt catalyst, under oxidative conditions, facilitates the single electron transfer process in -pyridyl arylacetamides to form α-carbon-centered radicals that readily react with molecular oxygen, giving access to mandelic acid...

A mononuclear iron(II) complex, [(Tp)Fe(OTf)(CHCN)] (1) (Tp = hydrotris(3,5-diphenylpyrazol-1-yl)borate, OTf = triflate) has been isolated and its efficiency toward the aliphatic CC bond cleavage reaction of 1,2-diols with dioxygen has...

This article demonstrated the redox-noninnocent phenylene-linked bis(β-diketiminate) (L)-bridged first example of isomeric diruthenium(III)-acac species (acac = acetylacetonate) and its ability to activate dioxygen. The coordination of deprotonated L to the...

Aerobic organisms involve dioxygen-activating iron enzymes to perform various metabolically relevant chemical transformations. Among these enzymes, mononuclear non-heme iron enzymes reductively activate dioxygen to catalyze diverse biological oxidations, including oxygenation...

Generation of high-valent oxomanganese complexes through controlled removal of protons and electrons from low-valent congeners is a crucial step toward the synthesis of functional analogues of the native oxygen evolving...

Two mononuclear nonheme iron(II)-benzoylformate (BF) complexes [(6Me-Me-BPA)Fe(BF)](ClO) (1a) and [(6Me-TPMM)Fe(BF)](ClO) (1b) of tridentate nitrogen donor ligands, bis((6-methylpyridin-2-yl)methyl)(-methyl)amine (6Me-Me-BPA) and tris(2-(6-methyl)pyridyl)methoxymethane (6Me-TPMM), were isolated and characterized. The structural characterization of iron(II)-chloro...

The unexplored 'actor' behavior of redox-active bis(aldimine) congener, p-phenylene-bis(picoline)aldimine (L1), towards dioxygen activation and subsequent functionalization of its backbone was demonstrated on coordination with {Ru(acac) } (acac= acetylacetonate). Reaction under...

The isolation, characterization, and dioxygen reactivity of monomeric [(TPA)M(mandelate)] (M = Fe, ; Co, ) and dimeric [(BPMEN)M(μ-mandelate)] (M = Fe, ; Co, ) (TPA = tris(2-pyridylmethyl)amine and BPMEN =...