Synthesis, solid-state and solution structures of tris[(2-methoxymethyl)phenyl]germanes with a substituent on germanium |
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Authors: | Yusuke SugiyamaTaku Matsumoto Hiroshi YamamotoMiki Nishikawa Masashi KinoshitaTohru Takei Wasuke MoriYoshito Takeuchi |
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Affiliation: | Department of Chemistry, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsukashi 259-1293, Japan |
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Abstract: | A series of tris[(2-methoxymethyl)phenyl]germanes with a substituent on germanium was prepared and their solid-state and solution structures were investigated by means of X-ray crystallography and NMR spectroscopy to elucidate the effect of the substituent on the hypercoordination of the germanium atom in triarylgermanes. It was shown that when the substituent is a halogen, the triarylgermanes tend to be pentacoordinated trigonal bipyramidal while the triarylgermane is tetrahedral with no coordination when the substituent is a phenyl group. The methyl derivative is a monocapped tetrahedron. |
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Keywords: | organogermanium compounds hypercoordination triarylgermane Ge-73 NMR variable temperature H-1 NMR |
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