20
charge = 0
 N 2.844901 -1.339926 -0.489912
 C 2.355060 -0.032234 -0.078183
 C 2.734019 0.272237 1.356973
 C 2.313987 1.657710 1.836532
 C 2.480638 1.582220 3.351939
 C 2.116824 0.130113 3.723225
 C 2.083930 -0.649301 2.393650
 H 2.641479 -1.505226 -1.467474
 H 2.377184 -2.070863 0.032386
 H 1.261357 0.082439 -0.178308
 H 2.809436 0.716060 -0.736014
 H 3.824799 0.184718 1.442486
 H 1.261012 1.825912 1.577469
 H 2.894092 2.464152 1.380871
 H 1.872450 2.317625 3.882651
 H 3.522901 1.786028 3.613631
 H 1.149726 0.078153 4.227943
 H 2.849051 -0.291316 4.415097
 H 1.045700 -0.839125 2.095100
 H 2.580145 -1.619487 2.466448