Cu(III)-bis-thiolato complex forms an unusual mono-thiolato Cu(III)-peroxido adduct

Jane M Donnelly; Frederik Lermyte; Juliusz A Wolny; Marc Walker; Ben G Breeze; Russell J Needham; Christina S Müller; Peter B O'Connor; Volker Schünemann; Joanna F Collingwood; Peter J Sadler

doi:10.1039/d0cc06921c

Cu(III)-bis-thiolato complex forms an unusual mono-thiolato Cu(III)-peroxido adduct

Chem Commun (Camb). 2021 Jan 5;57(1):69-72. doi: 10.1039/d0cc06921c.

Authors

Jane M Donnelly¹, Frederik Lermyte, Juliusz A Wolny, Marc Walker, Ben G Breeze, Russell J Needham, Christina S Müller, Peter B O'Connor, Volker Schünemann, Joanna F Collingwood, Peter J Sadler

Affiliation

¹ School of Engineering, University of Warwick, Gibbet Hill Road, Coventry CV4 7Al, UK.

PMID: 33337460
DOI: 10.1039/d0cc06921c

Abstract

The stable complex [bis(toluene-3,4-dithiolato)copper(iii)][NEt3H] has been synthesised and characterised as a square-planar Cu(iii) complex by X-ray photoelectron spectroscopy, cyclic voltammetry and DFT calculations. Intriguingly, when fragmented in FTICR-MS, an unusual [(toluene-3,4-dithiolate)Cu(iii)(peroxide)]- complex is formed by reaction with oxygen. Natural 1,2-dithiolenes known to bind molybdenum might stabilise Cu(iii) in vivo.