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Isolation of an imino-N-heterocyclic carbene/germanium(0) adduct: A mesoionic germylene equivalent
B. Su, , Y. Li, R. Kinjo
Published in Wiley-VCH Verlag
Volume: 53
Issue: 48
Pages: 13106 - 13109
An autoionization of germanium dichloride/dioxane complex with an imino-N-heterocyclic carbene ligand (L) afforded a novel germyliumylidene ion, [(L)GeCl]+[GeCl3]-, which was fully characterized. Reduction of the germyliumylidene ion with potassium graphite produced a cyclic species [(L)Ge], which can be viewed as both a Ge0 species and a mesoionic germylene. X-ray diffraction analysis and computational studies revealed one of the lone pairs on the Ge atom is involved in the p system on the GeC2N2 five-membered ring. It was also confirmed that the nucleophilic behavior of [(L)Ge] as a two lone-pair donor. © 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
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