copper(l) iodide in toluene hydrogermane mixed with 4 equiv. of CuCl2 and CuI in toluene under reflux for 4 days; solvent evapd., distilled under reduced pressure, unidentified by-products formed;

in cyclohexane Kinetics; byproducts: CCl3CCl3; Irradiation (UV/VIS); photolysis of Ge-compd. in cyclohexane in the presence of CCl4 at 245 nm at room temp. for 30 min with a 110 W low pressure Hg arc lamp;