SYMMETRY PM7 K2O <K-O> GR=HIKL1992 GWT=0.5 K 0.00000000 +0 0.0000000 +0 0.0000000 +0 0 0 0 O 2.26100000 +1 0.0000000 +0 0.0000000 +0 1 0 0 K 2.26100000 +0 179.9490116 +1 180.0000000 +0 2 1 0