Stepwise addition of [Re2(µ-H)2(CO)8] to a labile Pt(0) complex. X-Ray crystal structures of the bow-tie clusters [Re4Pt(µ-H)6 –n(CO)16]n–(n= 0,1)

Abstract

The stepwise reaction of the ethylene-like molecule [Re₂(µ-H)₂(CO)₈] with [Pt(cod)₂](cod = cycloocta-1,5-diene) affords the triangular cluster [Re₂Pt(µ-H)₂(CO)₈(COd)] and then, under H₂, the pentanuclear species [Re₄Pt(µ-H)₆(CO)₁₆], with a bow-tie geometry of the metal cluster, which in basic media deprotonates reversibly to [Re₄Pt(µ-H)₅(CO)₁₆]^–.