21
charge = 0
 C 3.164497 -0.622552 -1.213292
 C 2.853196 -0.348682 0.247598
 C 3.362687 1.005174 0.753721
 C 2.843400 1.278355 2.169483
 C 3.144639 2.675562 2.682496
 C 4.857440 1.059599 0.715264
 C 5.591271 1.904083 0.004078
 H 2.774343 -1.594542 -1.523920
 H 4.240478 -0.615651 -1.401003
 H 2.714617 0.137379 -1.858886
 H 3.279532 -1.141744 0.874314
 H 1.769676 -0.388293 0.405105
 H 2.973391 1.788380 0.088686
 H 3.269458 0.531502 2.850780
 H 1.760649 1.111025 2.176126
 H 4.219508 2.867245 2.713051
 H 2.747767 2.819552 3.690083
 H 2.694759 3.435447 2.036850
 H 5.362594 0.322624 1.341750
 H 5.132851 2.654239 -0.633328
 H 6.674828 1.878517 0.031245