21
charge = 0
 C 0.827748 0.280299 -0.219977
 C 2.320934 0.137677 -0.117923
 C 3.124232 -0.752913 -1.034829
 C 2.500267 -1.573985 -2.128815
 C 3.286038 0.745579 -1.105669
 C 2.774195 1.512021 -2.298155
 C 4.562578 1.318593 -0.543945
 H 0.323240 -0.514430 0.337093
 H 0.465775 0.234439 -1.247392
 H 0.497646 1.235259 0.198801
 H 2.675610 0.157026 0.909845
 H 3.954464 -1.260773 -0.549770
 H 2.140956 -2.530738 -1.738976
 H 3.227905 -1.792508 -2.915629
 H 1.651612 -1.078270 -2.600791
 H 1.851390 1.104964 -2.710554
 H 3.518839 1.514560 -3.100514
 H 2.580818 2.555299 -2.028954
 H 4.909064 0.743387 0.318129
 H 4.420917 2.354810 -0.219368
 H 5.361343 1.312224 -1.293008