Synthesis, Structure, and Catecholase Reaction of a Vanadate Ester System Incorporating Monoionized Catechol Chelation

Rath, Sankar Prasad ; Rajak, Kajal Krishna ; Chakravorty, Animesh (1999) Synthesis, Structure, and Catecholase Reaction of a Vanadate Ester System Incorporating Monoionized Catechol Chelation Inorganic Chemistry, 38 (20). pp. 4376-4377. ISSN 0020-1669

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Official URL: http://doi.org/10.1021/ic990551u

Related URL: http://dx.doi.org/10.1021/ic990551u

Abstract

An example of the title system is VO(Hdbcat)(A(1)), 1a, where the tridentate coligand (A(1))(2-) is a diionized salicylhydrazone. The reaction of la with O-2 in solution forms the basis of the depicted cycle where 1a is the reactive intermediate and V2O3(A(1))(2), 3a is the catalyst. The net result is the catecholase reaction H(2)dbcat +1/2 O-2 --> dbq + H2O. The phenolic proton of la is proposed to have a crucial role in anchoring OL thus making it O-2-sensitive.

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