Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Asmita Singha"'
Publikováno v:
Journal of the American Chemical Society. 142:21810-21828
Phenols and quinols participate in both proton transfer and electron transfer processes in nature either in distinct elementary steps or in a concerted fashion. Recent investigations using synthetic heme/Cu models and iron porphyrins have indicated t
Publikováno v:
Coordination Chemistry Reviews. 386:183-208
Heme proteins catalyse a diverse set of vital life processes using very similar heme cofactor. Thus, the inorganic chemistry community has been investigating factors in the protein active site that control their reactivity. These required synthesis o
Publikováno v:
Inorganica Chimica Acta. 487:63-69
The reaction of O2 with binuclear Cu(I) enzymatic active sites as well as synthetic complexes result in the formation of [Cu2O2]2 + core which can exist either in a η2η2-peroxo dicopper (II) species or bis(μ-oxo) dicopper (III) species. These spec
Publikováno v:
Inorganic Chemistry. 56:3916-3925
The reaction of FeIII porphyrin complexes bearing distal hydrogen bonding residues with sulfide/hydrosulfide is kinetically monitored to reveal the presence of an intermediate and a kH/kD of 3.0. This intermediate is trapped at low temperatures and i
Publikováno v:
Inorganic chemistry. 56(7)
The reaction of Fe
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 23(42)
Activation of inert C-H bonds such as those of methane are extremely challenging for chemists but in nature, the soluble methane monooxygenase (sMMO) enzyme readily oxidizes methane to methanol by using a diiron(IV) species. This has prompted chemist
Publikováno v:
ECS Meeting Abstracts. :427-427
Dioxygen adducts of heme proteins are ubiquitous in all O2 activating/reducing heme proteins in nature. While artificial dioxygen adducts of heme are known for six decades, till date these have not been demonstrated to be able to oxidize organic subs
Publikováno v:
Dalton transactions (Cambridge, England : 2003). 45(47)
The electronic structure and reactivity of iron porphyrin complexes bearing 2nd sphere hydrogen bonding residues have been investigated over the last few years. The presence of these weak interactions alters the spin ground state, and axial ligand bo
Autor:
Sabyasachi Bandyopadhyay, Abhishek Dey, Subhra Samanta, Atanu Rana, Asmita Singha, Kushal Sengupta, Sudipta Chatterjee, Kaustuv Mittra
Publikováno v:
Journal of inorganic biochemistry. 155
An iron porphyrin with a pre-organized hydrogen bonding (H-Bonding) distal architecture is utilized to avoid the inherent loss of entropy associated with H-Bonding from solvent (water) and mimic the behavior of metallo-enzyme active sites attributed