PUB - Publikationen an der Universität Bielefeld

GeCl2.(dioxane) (1) reacts at low temperatures with stoichiometric amounts of (2,4,6-tri-tert-butylphenyl)lithium to give the unsymmetrically substituted (supermesityl)chlorogermylene (2), which is stable at ambient temperature. The monomeric structure of 2 has been proven both in solution and in the solid state. 2 is a suitable substrate for the synthesis of mixed germylenes. Thus, reaction of 2 with Cp*Li leads to the germylene Mes*GeCp* (3), whereas the reaction with the corresponding alkali-metal metalates yields the first organometallogermylenes, Mes*GeFe(CO)2R (4, R = Cp*; 5, R = Cp).