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Inorg. Chem. [POMAM]

juin 14 2019

Abstract :

Two trinuclear CuII pyrazolato complexes with a Cu33-E)-core (E = O2– or OH) and terminal nitrite ligands in two coordination modes were characterized crystallographically, spectroscopically, and electrochemically. One-electron oxidation of the μ3-O species produces a delocalized, mixed-valent, formally CuII2CuIII-nitrite, but no nitrate. In contrast, under reducing conditions—addition of PhSH as an electron and proton donor—both complexes mediate the reduction of nitrite, releasing NO.

Graphical abstract :


Reference :

Kaige Shi, Logesh Mathivathanan, Athanassios K. Boudalis, Philippe Turek, Indranil Chakraborty, Raphael G. Raptis

Nitrite Reduction by Trinuclear Copper Pyrazolate Complexes: An Example of a Catalytic, Synthetic Polynuclear NO Releasing System

Inorg. Chem., 2019, 58 , 11, 7537-7544 - DOI: https://doi.org/10.1021/acs.inorgchem.9b00748

Contact chercheur :

Athanassios K. Boudalis (https://pomam.chimie.unistra.fr/aboudalis/), POMAM, Institut de Chimie (UMR 7177).