Interconversion of auI/II/III centres in thioether macrocyclic complexes: the synthesis, structures and redox properties of [Au([18]aneS6)]PF6 and [Au2([15]aneS5)2][B(C6F5)4]2

Abstract

The interconversion of mononuclear Au^I/^II/^III centres in thioether macrocyclic complexes is related to the stereochemical properties of the parent Au^I species; the structure of [Au([18]aneS₆)]⁺ shows a distorted tetrahedral [2 + 2] coordination at Au^I, while the Au^I complex of [15]aneS₅ is binuclear with Au^I ions bridging [15]aneS₅ ligands in a macrobicyclic structure.