13
charge = 0
 O 1.058446 -0.001370 0.056908
 C 2.459308 0.060527 0.084109
 C 3.158881 1.129361 0.945372
 C 4.172821 0.041999 1.352793
 C 3.131187 -1.015680 0.935992
 H 0.729032 0.678029 -0.536734
 H 2.872748 0.058354 -0.933752
 H 2.513720 1.399908 1.784547
 H 3.525416 2.036295 0.460773
 H 4.516691 0.033110 2.386834
 H 5.044459 0.033483 0.695378
 H 2.476494 -1.274062 1.771456
 H 3.467997 -1.929842 0.445825