Nashreen S Islam
Articles written in Journal of Chemical Sciences
Volume 102 Issue 3 June 1990 pp 365-377
Newer manifestations of reactivity of coordinated peroxide at metal and non-metal centres
Manish Bhattacharjee Mihir K Chaudhuri Nashreen S Islam
Newer reactions of coordinated peroxide at metal and non-metal centres are described. Reactions of peroxo-metal complexes with SO2
Further, the reaction of A[V(O2)3]·3H2O with SO2(g) in the presence of AF, yielding a ternary fluoro(sulphato)oxovanadate (IV) complex A4[VO(SO4)2F2(H2O)]·2H2O, serves as a paradigm for the synthesis of ternary complexes of vanadyl, VO2+. It is also evident
Some recent developments in the peroxo-chemistry of B, C, P and As are highlighted. Heretofore unreported salts of peroxo phosphoric acid, viz. (NH4)3[PO3(O2)]·3H2O and Na3[PO3(O2)]·3H2O, have been synthesized and their potential as oxidants explored. Their role in oxidising organic substances is highlighted, especially as a substitute for the alkaline-H2O2 reagent.
Volume 127 Issue 5 May 2015 pp 777-795 Review Article
Macromolecular peroxo complexes of Vanadium(V) and Molybdenum(VI): Catalytic activities and biochemical relevance
Nashreen S Islam Jeena Jyoti Boruah
Our recent achievements concerning the synthesis and characterization of water soluble peroxo complexes of V(V) and Mo(VI) in macroligand environment, as well as some key features of biological relevance of these compounds, such as their hydrolytic stability, activity with phosphohydrolase enzyme vis-à-vis free peroxovanadium (pV) or peroxomolybdenum (pMo) complexes, and their activity in biomimetic oxidative bromination are presented here. Immobilization of pMo species on insoluble polymer matrices viz., amino acid functionalized Merrifield resins and poly(acrylonitrile) on the other hand, afforded a set of heterogeneous catalysts highly effective in facile organic transformations such as selective oxidation of organic sulfides and oxidative bromination of aromatic substrates by H2O2, at ambient temperature. The methodologies are straightforward, high-yielding, halogen-free and the catalysts afford easy regeneration. Our findings illustrate the various features which make the procedures sustainable and synthetically useful.
Volume 135, 2023
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