structure of Me3N.GaH3 has been confirmed in both the gas and solid phases. In this regard, the 1:1 adduct contrasts with the corresponding alane complex, Me3N.AlH3 which in the solid is dimeric with bridging hydrogen atoms. Solute properties Gaseous gallane is a hydrophilic (non-polar) aprotic solute. It dissolves in polar compounds such as tetramethylethylenediamine, from which it can be crystallised as gallane—N,N,N′,N′-tetramethylethane-1,2-diamine (1/1). Other chemical reactions Upon treatment with a standard base, it converts to a metal tetrahydroxygallanuide (the anion Ga(OH)4−) and hydrogen gas. With strong bases, it can be deprotonated to give . Reduction of gallane gives gallium metal. Upon treatment with a standard acid, it converts to a gallium(3+) salt and hydrogen gas. Oxidation of gallane gives Ga(OH)3, gallium(III) hydroxide. Unsolvated gallane is in chemical equilibrium with digallane(6), being the dominant species with increasing temperature. Due to this equilibrium, gallane and digallane(6) are often considered to be chemically equivalent. Reactions requiring gallane as opposed to digallane(6), must be carried out in solution. Common solvents include tetrahydrofuran, and diethyl ether. See also Digallane References Gallium compounds