13
charge = 0
 O 2.338817 -0.570316 -1.215649
 C 2.180751 0.051429 0.048053
 C 2.771504 1.412521 -0.001302
 C 2.141888 2.585974 0.247728
 O 2.994998 3.625855 0.131990
 C 4.197471 3.107766 -0.207751
 C 4.126166 1.761914 -0.303073
 H 2.086417 -1.492695 -1.129594
 H 2.683296 -0.538251 0.827637
 H 1.120489 0.126427 0.323902
 H 1.125670 2.830063 0.512179
 H 4.995014 3.818545 -0.347550
 H 4.926099 1.089967 -0.570150