21
charge = 0
 C 1.846382 -0.453172 0.477064
 C 2.739985 0.246691 -0.536543
 C 3.095860 -0.554715 -1.796830
 C 2.044974 -0.575125 -2.899973
 C 0.726372 -1.265396 -2.586952
 O 3.429101 -1.899834 -1.509421
 C 4.642243 -2.055839 -0.829562
 H 1.750761 0.154925 1.379775
 H 2.263531 -1.419674 0.766298
 H 0.842791 -0.637019 0.094872
 H 3.672998 0.528916 -0.036880
 H 2.286738 1.190485 -0.858271
 H 3.985415 -0.070023 -2.234216
 H 1.862551 0.460314 -3.206915
 H 2.508531 -1.072818 -3.757714
 H 0.118012 -0.694119 -1.883931
 H 0.894700 -2.257872 -2.165386
 H 0.137814 -1.384161 -3.499785
 H 4.611456 -1.645919 0.188472
 H 5.469127 -1.572431 -1.369729
 H 4.844248 -3.125815 -0.764692