SYMMETRY PM7 Cesium oxide (Cs2O) H=-22 HR=NIST Cs 0.00000000 +0 0.0000000 +0 0.0000000 +0 0 0 0 O 2.19293795 +1 0.0000000 +0 0.0000000 +0 1 0 0 Cs 2.19293795 +0 179.9091981 +1 0.0000000 +0 2 1 0