OPEN(1,1) PM7 Hydrogen sulfide (HS) H=33.30 HR=JANAF86 H 0.00000000 +0 0.0000000 +0 0.0000000 +0 0 0 0 S 1.33296942 +1 0.0000000 +0 0.0000000 +0 1 0 0