Heteronuclear cluster formation: the synthesis and structure of the chloro-bridged tetranuclear complex [TlCl2Ru(PPh3)([9]aneS3)]2(PF6)2 incorporating a [RuCl2Tl2Cl2Ru] ladder ([9]aneS3= 1,4,7-trithiacyclononane)

Abstract

Treatment of [RuCl₂(PPh₃)([9]aneS₃)], formed in high yield by reaction of [RuCl₂(PPh₃)₃] with [9]aneS₃, with TIPF₆ in CH₂Cl₂ at 273 K affords the yellow hetero-cluster species [TlCl₂Ru(PPh₃)([9]aneS₃)]₂(PF₆)₂ incorporating a [RuCl₂Tl₂Cl₂Ru] ladder; dissolution of [TlCl₂Ru(PPh₃)([9]aneS₃)]₂(PF₆)₂ in acetone leads to precipitation of TlCl and the formation of the orange chloro-bridged dimer [RuCl(PPh₃)([9]aneS₃)]₂(PF₆)₂.