The molecular structure of trimethylamine–gallane in the gas phase as determined by electron diffraction

Abstract

The structure of the gaseous trimethylamine–gallane molecule, Me₃N·GaH₃, has been determined by electron diffraction. Salient structural parameters (r_a) are: r(Ga–H) 149.7(1.5), r(Ga–N) 212.4(0.7), r(N–C) 148.2(0.5), r(C–H) 111.2(0.4) pm, Ga–N–C 109.9(0.5), and N–C–H 112.7(2.2)°. The main features of the structure are compared with those of other molecules including either aluminium or gallium bound to hydrogen and/or a nitrogen atom.