21
charge = 0
 C 0.894939 -1.021749 1.373837
 C 2.412376 -0.958243 1.353020
 C 3.017416 -1.641307 0.128862
 C 4.506137 -1.546523 0.080938
 C 5.343343 -2.577240 0.078836
 C 6.833420 -2.483297 0.053940
 C 7.484701 -3.142223 1.265302
 H 0.485253 -0.528530 2.258293
 H 0.543387 -2.057429 1.378852
 H 0.466985 -0.534251 0.493148
 H 2.819020 -1.424670 2.256529
 H 2.738770 0.087691 1.378600
 H 2.592212 -1.178115 -0.771892
 H 2.715079 -2.694098 0.107372
 H 4.922144 -0.538295 0.057845
 H 4.928072 -3.585729 0.108556
 H 7.131327 -1.431935 -0.006289
 H 7.211058 -2.966248 -0.856093
 H 7.171361 -2.652973 2.190559
 H 8.574434 -3.090995 1.205386
 H 7.204388 -4.196652 1.337479