Synthesis and X-ray crystal structure of the trimetallic neopentylidyne complex [{Cl2(MeOCH2CH2OMe)Ta(µ-CCMe3)}2Zn(µ-Cl)2]

Abstract

α-Hydrogen abstraction from the neopentylidene complex [Cl₃(MeOCH₂CH₂Ome)Ta(CHCMe₃)] by (Me₃CCH₂)₂Zn results in the bridging neopentylidyne complexes [{Cl₂(MeOCH₂CH₂OMe)Ta(µ-CCMe₃)}₂Zn-(µ-Cl)₂] and [{Cl₂(MeOCH₂CH₂OMe)Ta(µ-CCMe₃)}Zn(CH₂CMe₃)Cl]; the crystal structure of the first complex reveals the co-ordination of two TaCCMe₃ fragments to one ZnCl₂ molecule.