Gallane-arsine, H sub 3 Gater dot AsH sub 3 : Prediction of a stable Ga-As bonded species

The structure, harmonic frequencies, and binding energy of the simplest gallane-arsine molecular adducts have been calculated with ab initio molecular orbital methods. H{sub 3}Ga{center dot}AsH{sub 3} is predicted to have a binding energy of 16 kcal mol{sup {minus}1} (MP4/HUZSP{sup **}//RHF/HUZSP{sup *}) and should be observable in the gas phase.