ketene.mol 5 4 0 0 0 0 0 0 0 0 0 -1.3073 -0.0007 -0.0012 C 0 0 0 0 0 0.0110 -0.0002 -0.0002 C 0 0 0 0 0 -1.8536 0.9453 0.0005 H 0 0 0 0 0 -1.8543 -0.9463 0.0007 H 0 0 0 0 0 1.1909 0.0011 0.0003 O 0 0 0 0 0 1 2 2 0 0 0 1 3 1 0 0 0 1 4 1 0 0 0 2 5 2 0 0 0