20
charge = 0
 N 0.962726 0.146845 0.193985
 C 2.409484 -0.003123 0.245640
 C 2.817560 -1.415234 -0.128085
 C 4.322908 -1.620281 -0.134562
 C 4.730035 -3.045635 -0.498887
 C 6.209386 -3.228335 -0.563819
 C 6.912444 -4.070623 0.180362
 H 0.693021 1.097646 0.412528
 H 0.523769 -0.447999 0.887035
 H 2.846332 0.247685 1.226382
 H 2.844426 0.697742 -0.475305
 H 2.398556 -1.650792 -1.112177
 H 2.357728 -2.120027 0.577532
 H 4.738880 -1.370786 0.848202
 H 4.782740 -0.921809 -0.844650
 H 4.292764 -3.293965 -1.474903
 H 4.303560 -3.750680 0.222619
 H 6.734410 -2.598831 -1.281787
 H 6.433248 -4.716503 0.910282
 H 7.989434 -4.150004 0.087097