[{(Et2O)2ClGa}Ga{GaCl2(Et2O)}3]: A Molecular Compound with a Tetrahedral Ga5 unit

Oxidation states between O and H can be formally assigned to the five Ga atoms in the title compound 1 depending on the coordinating ligands. Each Ga atom has a tetrahedral coordination environment; the central atom is surrounded by the other four Ga atoms. Compound 1 crystallizes at −30°C from a cryochemically prepared solution of GaCl in toluene/diethyl ether.