21
charge = 0
 C 0.623959 0.636837 -0.222433
 C 2.128955 0.433778 -0.176318
 C 2.898878 1.498802 -0.941125
 C 4.405661 1.303239 -0.902207
 C 5.170520 2.373392 -1.676820
 C 6.650803 2.204785 -1.595353
 C 7.459826 2.019386 -2.629184
 H 0.096033 -0.140375 0.334968
 H 0.254560 0.615935 -1.251698
 H 0.342837 1.602507 0.207388
 H 2.379465 -0.552955 -0.582784
 H 2.466708 0.424440 0.866598
 H 2.649991 2.487481 -0.534803
 H 2.560716 1.509251 -1.985125
 H 4.660579 0.317401 -1.307622
 H 4.745669 1.299189 0.140744
 H 4.897512 3.357623 -1.273465
 H 4.857408 2.368313 -2.726274
 H 7.077340 2.227845 -0.592929
 H 7.079821 1.986482 -3.646068
 H 8.529027 1.896345 -2.500311