Molecular structure and reactivity of a copper(I) tetramer
Abstract
A homoleptic copper(I) tetramer, [Cu(PhTt)]4 1, is synthesized using phenyltris[(methylthio)methyl)]borate, PhTt–; X-ray analysis shows the four copper ions are nearly coplanar and each resides in an approximately tetrahedral environment; although 1 is stable towards O2, H2O and CO, it reacts with PPh3, pyridine, or [NEt4]SPh to yield the corresponding monomer, [Cu(PhTt)L](L = PPh3 2, py 3, [NEt4]SPh 4).