text: A two-stage approach proved to be the key to successful synthesis of pure digallane. Firstly the dimeric monochlorogallane,  (containing bridging chlorine atoms and thus formulated as () was prepared via the hydrogenation of gallium trichloride, , with trimethylsilane, . This step was followed by a further reduction with  (lithium tetrahydrogallate), solvent free, at −23 °C, to produce digallane,  in low yield.
  Digallane is volatile and condenses at −50 °C into a white solid.