Charge-transfer spectra of permethylated polygermanes-TCNE to afford 1:1 adducts
摘要:
Charge-transfer spectra of permethylated polygermane-tetracyanoethylene (TCNE) complexes were observed. The frequency of charge-transfer spectra was linearly related to ionization potentials (or electrochemical oxidation potentials) of the polygermanes. Polygermanes inserted into TCNE to afford 1:1 adducts under mild conditions.
Chlorinative cleavage of germanium–germanium bonds in permethyloligogermanes initiated by photo-induced electron transfer
作者:Kunio Mochida、Hideaki Watanabe、Shigeo Murata、Mamoru Fujitsuka、Osamu Ito
DOI:10.1016/s0022-328x(98)00709-8
日期:1998.10
s, Me(Me2Ge)nMe (n=2–5), in CCl4–CH3CN in the presence of 9,10-dicyanoanthracene (DCA) afforded the corresponding chlorogermanes and hexachloroethane. Fluorescence of DCA was quenched by the oligogermane with a diffusion-controlled rate. A mechanism of free-radical chlorination involving oligogermane cation radicals and a DCA anionradical is proposed for the germanium–germanium cleavage.