Synthesis, Crystal Structure and Catechol Oxidase Activity of a Di- nuclear Paddle-Wheel Cu (II) Carboxylate Complex

Author:

Chakraborty Priyanka1,Chatterjee Abhishikta1,Kumar Bidyapati1,Mondal Sourav1,Dey Subrata1

Affiliation:

1. Sidho-Kanho-Birsha University

Abstract

Abstract A dinuclear copper (II) complex, Cu2 (RCOO)4(L)2 (1) while [RCOO = benzoate, L = 2-amino-3-chloro-5-trifluoro methyl pyridine], with square pyramidal geometry with four carboxylate bridged groups has been reported. This dinuclear copper (II) unit (with the most robust, frequently occurring paddle wheel structure) was characterised by single crystal X-ray diffraction, IR, UV, CV, TGA and EPR studies. It exhibits catechol oxidase activity in methanol medium and the catecholase activity was monitored by the UV–Vis spectroscopy. The kinetic parameters have been determined by using Michaelis–Menten equation which shows that the complex is an efficient catalyst with very high turnover number. Mechanistic investigation of the catalytic behavior was established with the help of ESI-MS spectra.

Publisher

Research Square Platform LLC

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