7 H2Al_SiH3.mmp Si 1.193000 -0.003000 0.000000 Al -1.276000 -0.001000 0.000000 H 1.695000 1.407000 0.000000 H 1.771000 -0.670000 1.204000 H 1.771000 -0.670000 -1.204000 H -2.089000 0.016000 -1.367000 H -2.089000 0.016000 1.367000