in tetrahydrofuran byproducts: KBr; soln. of 2 molar equiv. of Fe complex in THF added dropwise to a soln. of Ga dimer at room temp. under N2 and vigorous stirring; stirred for an additional 8 h; colour of the mixt. turned to yellowish brown, gray ppt.formed; filtered, evapd., redissolved in Et2O, cooled to -4°C; crystals sepd. off; identified by elem. anal. and single crystal X-ray diffraction;

in diethyl ether; pentane byproducts: Ga, LiBr; added at -60°C, warmed up to room temperature, stirred for 30 min; solvent removed by destillation, filtered, fractionated destillation;

in diethyl ether; pentane byproducts: Ga, C4H8O2, LiBr; (Ar), added at -60°C, warmed up to room temperature over 1 h, stirred 5 min; filtered, washed with toluene, fractionated destillation;