Ge2 trapped by triple bonds between two metal centers: The germylidyne complexes trans,trans-[Cl(depe)2M≡Ge- Ge≡M(depe)2Cl] (M = Mo, W) and bonding analyses of the M≡Ge-Ge≡M chain

Abstract

(Chemical Equation Presented) Going straight: Thermolysis of the germylidyne complexes trans-[Cl(depe)2M≡ Ge(η1- Cp*)] (M = Mo, W; depe = Et2PCH2CH 2PEt2, Cp* = C5Me5) leads upon cleavage of the Ge-Cp* bond to 1, the first compounds in which a Ge 2 unit is trapped between two transition-metal centers by triple bonds. Quantum chemical analyses suggest a weak conjugation of the M-Ge triple bonds in the linear chain M≡Ge-Ge≡M. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.