Reversible P-P bond cleavage at an iridium(III) metal centre

Simon J Coles; Peter N Horton; Patrick Kimber; Wim T Klooster; Pingchuan Liu; Felix Plasser; Martin B Smith; Graham J Tizzard

doi:10.1039/d2cc00706a

Reversible P-P bond cleavage at an iridium(III) metal centre

Chem Commun (Camb). 2022 May 5;58(37):5598-5601. doi: 10.1039/d2cc00706a.

Authors

Simon J Coles¹, Peter N Horton¹, Patrick Kimber², Wim T Klooster¹, Pingchuan Liu², Felix Plasser², Martin B Smith², Graham J Tizzard¹

Affiliations

¹ UK National Crystallography Service, School of Chemistry, University of Southampton, Southampton, SO17 1BJ, UK.
² Department of Chemistry, Loughborough University, Loughborough, Leics, LE11 3TU, UK. m.b.smith@lboro.ac.uk.

PMID: 35437547
DOI: 10.1039/d2cc00706a

Abstract

Treatment of a κ¹-P-monodentate bicyclic diphosphane iridium(III) complex with a labile gold(I) precursor afforded an unusual Ir^III/Au^I complex in which the P-P single bond has been cleaved. This reaction was cleanly reversed upon addition of tertiary phosphine. Carbon-carbon bond activation, across neighbouring P₂C₂N rings of the coordinated bicyclic diphosphane, occurred upon thermolysis of the Ir^III/Au^I complex.