Dalton communication. New diiridium(I) and diiridium(I,III) complexes containing thiolate ligands. Crystal structures of [(cod)Cl(SC6F5)Ir(µ-SC6F5)2Ir(cod)] and [{Ir(µ-SC6F5)(CO)2}2](cod = cycloocta-1,5-diene)

Abstract

The complex [{Ir(µ-Cl)(cod)}₂]1(cod = cycloocta-1,5-diene) was treated with HSR (R = C₆F₅)–NEt₃ to give the dinuclear iridium(I) complex [{Ir(µ-SR)(cod)}₂]2 and with HSR only to give a mixture of 2 and the unusual mixed-valence complex [(cod)Cl(SR)Ir(µ-SR)₂Ir(cod)]3; complex 2 was treated with CO to yield [{Ir(µ-SR)(CO)2}2]4, the structure of which, together with that of 2, has been characterised by single-crystal X-ray diffraction.