PM7 Potassium sulfide H=-9.9 HR=PW91D S 0.00000000 +0 0.0000000 +0 0.0000000 +0 0 0 0 K 2.85144714 +1 0.0000000 +0 0.0000000 +0 1 0 0 K 2.85049475 +1 159.4097187 +1 0.0000000 +0 1 2 0