Synthesis and structural characterisation of a novel 2,3-distibene-1,4-dione complex, [Pt(PEt₃)₂{η²-Bu^tC(O)Sb[double bond, length half m-dash]SbC(O)Bu^t}]

Abstract

The reaction of cis-[PtCl₂(PEt₃)₂] with 2 equiv. of [{[Li{η²-OC(Bu^t)EC(Bu^t)O}(DME)_0.5]₂}_∞], E = Sb or As, affords either the first distibene-dione complex, cis-[Pt(PEt₃)₂{η²-Bu^tC(O)Sb[double bond, length half m-dash]SbC(O)Bu^t}], or the related diarsenide-dione bridged complex, trans-[{Pt(PEt₃)Cl}₂{µ-η¹,η¹-Bu^tC(O)- AsAsC(O)Bu^t}], the X-ray crystal structures of which are described.

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