3 years ago

Isolation and Reactivity of a Chlorogermyliumylidene Featuring two Ge-Cl Units

Yuanting Su, Yongxin Li, Rakesh Ganguly, Rei Kinjo
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 the stand spectroscopic means and X-ray diffraction analysis. Structural and NMR 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 excess lithium metal resulted in the Ge‒Ge bond formation concomitant with elimination of one of the Ge atoms of 2, to give rise to the digermylene dilithium compound 3 involving intramolecular coordination of the imines and the lone pairs to the Li atoms.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/ejic.201701483

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