Crystal structure and u.v. photoelectron spectra of tetrakis-(6-methyl-2-oxopyridinato)dirhodium

Abstract

Rh₂(mhp)₄(where Hmhp = 6-methyl-2-hydroxypyridine) has been prepared and characterised by X-ray crystallography and shown to involve a metal–metal separation of 2·359(1)Å; the He I and He II photoelectron spectra of Rh₂(mhp)₄ provide evidence for the presence of a metal–metal single bond.