3-aminopropanethiol versus 2-aminoethanethiol leading to different s-bridged multinuclear structures composed of rhodium (III) octahedrons

Abstract

The reactions of fac-[Rh(apt)3] (apt: 3-aminopropanethiolate) with PdII and ZnII gave S-bridged RhIII 2ZnII trinuclear and RhIII3PdII3 hexanuclear complexes, respectively. The structures of these complexes, determined by single-crystal X-ray crystallography, were quite different from S-bridged structures derived from fac-[Rh(aet)3] (aet: 2-aminoethanethiolate). This is ascribed to the difference in SRhS bite angles between fac-[Rh(apt)3] with six-membered N,S-chelate rings and fac-[Rh(aet)3] with five-membered N,S-chelate rings.