13
charge = 0
 C 1.523223 -0.161866 -0.574874
 C 1.523898 0.636596 0.488454
 C 2.609085 0.769078 1.483030
 O 2.495253 1.540643 2.407105
 C 3.866252 -0.037438 1.317002
 C 5.149034 0.628412 1.579568
 O 4.598734 -0.278918 2.500514
 H 2.348526 -0.820829 -0.816150
 H 0.678614 -0.181942 -1.254037
 H 0.676532 1.283542 0.695280
 H 3.852040 -0.870696 0.621610
 H 5.125955 1.669438 1.890563
 H 6.035646 0.289361 1.049343