Is the Lewis-acid behavior of GaH3 comparable to that of BH3 and AlH3? A DFT comparison study of H(3)AXH(3) (A = B, Al, Ga and X = N, P, As) donor-acceptor complexes - El Guerraze, A; Anane, H; Serrar, C; Es-Sofi, A; Lamsabhi, AM; Jarid, A; (Journal Of Molecular Structure: Theochem, 2004)