13
charge = 0
 O 2.736750 1.528901 0.061534
 C 2.400720 0.169397 -0.081321
 C 3.027854 -0.336771 -1.381634
 C 2.469145 0.489506 -2.541805
 O 1.368534 0.309388 -2.975420
 C 4.479978 -0.323924 -1.360191
 C 5.679479 -0.303464 -1.375273
 H 2.323430 1.870240 0.857315
 H 1.315911 0.027842 -0.161792
 H 2.777239 -0.432800 0.754288
 H 2.667675 -1.360491 -1.532810
 H 3.141177 1.269740 -2.946710
 H 6.743777 -0.287884 -1.380039