Solution structure of [(triphos*)RhH2(AuPPh3)3][PF6]2 deduced by one- and two-dimensional 1H{31P} and 1H{103Rh} double-resonance techniques

✍ Scribed by Daniel Imhof; Heinz Rüegger; Luigi M. Venanzi; Thomas R. Ward

• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 575 KB
• Volume: 29
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1260291314

✦ Synopsis

Abstract

The application of ^1^H{^31^P} and ^1^H{^103^Rh} double‐resonance techniques for the elucidation of the solution structure of the metalla‐tetrahedrane clusters of the [(triphos*)RhH~2~(AuPPh~3~)~3~][PF~6~]~2~ type, with the chiral tripodal phosphine triphos* [RRR/SSS‐ or RRS/SSR‐1,1,1,‐tris(methylphenylphosphinomethyl)ethane] is described. Variable‐temperature studies revealed three types of dynamic processes, i.e. rapid rotation of the trigold moiety (AuPPh~3~)~3~, mutual exchange of the diastereotopic hydrides and slow rotation of the RRS/SSR‐triphos* unit in one diastereomer.