triethylamine in isopropyl alcohol; benzene byproducts: Et3NHCl; addn. of Et3N to Ge-complex soln. (-5 to -10°C, stirring), warming to 20°C, triethanolamine addn., stirring (room temp., 16 h); filtration of ppt. and evapn. of filtrate (vac.); elem. anal.;