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Isolation and Reactivity of a Chlorogermyliumylidene Featuring Two Ge–Cl Units
Y. Su, Y. Li, , R. Kinjo
Published in Wiley-VCH Verlag
Volume: 2018
Issue: 20
Pages: 2228 - 2231
Deprotonation of 1-mesityl-4,5-diphenyl-2-imidazole 1 with nBuLi, followed by salt metathesis reaction with GeCl2·dioxane complex, led to the formation of the chlorogermyliumylidene 2 bearing two Ge–Cl units, which has been isolated and fully characterized by standard spectroscopic and X-ray diffraction analysis. Structural and NMR spectroscopic data as well as computational studies revealed that the positive charge mainly resides on the Ge atom between two nitrogen atoms. Reduction of 2 with an excess amount of lithium metal resulted in Ge–Ge bond formation concomitant with elimination of one of the Ge atoms of 2, to give rise to the digermylenedilithium compound 3 involving intramolecular coordination of the imines and the lone pairs to the Li atoms. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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