D8d10 RhIAuI interactions in Rh 2,6-xylylisocyanide complexes with [Au(CN)2]-: bond analysis and crystal effects.

Abstract

The well-known [RhL4]n(anion)n structures, with RhIRhI d8d8 interactions, are replaced by others with RhIAuI d8d10 interactions such as [{RhL4}{Au(CN)2}] (L = 2,6-xylylisocyanide) or [{RhL4}{Au(CN)2}{RhL4}{Au2(CN)3}·4(CHCl3)]∞ when the anion is [Au(CN)2]-. Orbital (RhAu), coulombic, and inter-unit π-π aryl stacking interactions stabilize these crystal structures.