20
charge = 0
 C 0.506204 -0.040911 -0.060578
 C 1.964435 -0.439440 0.092544
 C 2.894720 0.328763 -0.833180
 C 4.356832 -0.061893 -0.688585
 C 5.287114 0.706290 -1.614329
 C 6.745345 0.307769 -1.461200
 H -0.139191 -0.607191 0.614994
 H 0.154568 -0.217205 -1.081119
 H 0.363144 1.021480 0.156433
 H 2.073798 -1.513516 -0.097549
 H 2.280800 -0.284217 1.130597
 H 2.785796 1.404278 -0.643909
 H 2.578686 0.174285 -1.872737
 H 4.465751 -1.137411 -0.877838
 H 4.672874 0.092603 0.350967
 H 5.177748 1.780371 -1.424266
 H 4.970747 0.551039 -2.652378
 H 7.096993 0.484115 -0.440671
 H 7.390735 0.874013 -2.136808
 H 6.888402 -0.754632 -1.678159