lithium in not given reaction of Me3SiCl with Ph2GeCl2 in presence of Li; characterized by NMR and mass spectroscopy;

in tetrahydrofuran (Ar), cooled to -78°C, stirred for 1.5 h, stirred for 24 h at ambient temp.; filtered, dilution with ether, extracted with aq. HCl, twice with deionized H2O, dried over MgSO4, evaporated solvent, chromy.(silica, hexane; NMR, UV, mass. spectra;

in tetrahydrofuran; pentane under N2 atm. to soln. Ph2GeH2 in THF was added dropwise soln. t-BuLi inpentane at -40°C and stirred at -40°C for 25 min, Me3SiCl was added dropwise, cooling bath was removed, mixt. was stirred for 24 h; aq. soln. NH4Cl was added, Et2O was added, layers were separated, aq. layer was extracted with Et2O, exctracts were washed with brine, H2O, dried over MgSO4, filtered, evapd., residue was distilled in vac., recrystd.from acetone/MeOH at -40°C;

in pentane Irradiation (UV/VIS); (N2), 1 h irradiated; gas chromatography; elem. anal., NMR, mass. spectra;

in pentane Irradiation (UV/VIS); (N2), 1 h irradiated; gas chromatography; elem. anal., NMR, mass. spectra;

in solid matrix Irradiation (UV/VIS); quartz UV cell, degassing by three freeze-pump-thaw cycles, placing th cell into a quartz windowed Dewar filled with liquid N2, irradn. with a low-pressure mercury lamp (254 nm) at 77K in 3-MP (3-methylpentane) solid matrix; not isolated, detd. by UV;

in cyclohexane byproducts: Me3SiSiMe3; Irradiation (UV/VIS); Solns. of (Me3Si)2GePh2 in cyclohexane readily undergo photolysis to diphenylgermylene and hexamethyldisilane, when irradiated by an array of low pressure Hg lamps through quartz vessels.; The yields are obtained by (1)H NMR integration.;

in pentane Irradiation (UV/VIS); (N2), 1 h irradiated; gas chromatography; elem. anal., NMR, mass. spectra;

in cyclohexane byproducts: Me3SiSiMe3; Irradiation (UV/VIS); Solns. of (Me3Si)2GePh2 in cyclohexane readily undergo photolysis to diphenylgermylene and hexamethyldisilane, when irradiated by an array of low pressure Hg lamps through quartz vessels.; The yields are obtained by (1)H NMR integration.;

in perdeuterocyclohexane byproducts: Si2Me6, PhSiMe3; Irradiation (UV/VIS); 254 nm;