13
charge = 0
 C 2.797192 -2.588587 1.161434
 C 3.196143 -1.561614 0.686311
 C 3.680376 -0.306377 0.128719
 C 4.203860 0.625401 1.178439
 C 5.425844 1.158012 1.145992
 C 5.927337 2.055526 2.120729
 C 6.384175 2.819650 2.930210
 H 2.446142 -3.502072 1.579770
 H 2.852450 0.177051 -0.406406
 H 4.457376 -0.507922 -0.615193
 H 3.532378 0.865956 1.996876
 H 6.101040 0.904523 0.331180
 H 6.780585 3.493251 3.652451