OPEN(1,2) PM7 Silicon chloride HWT=0.5 H=45.3 HR=WEPS1982 Si 0.00000000 +0 0.0000000 +0 0.0000000 +0 0 0 0 Cl 2.09506211 +1 0.0000000 +0 0.0000000 +0 1 0 0