18
charge = 0
 C 3.026547 -0.520823 1.198376
 C 2.531989 0.142581 -0.075018
 C 3.074494 -0.488999 -1.360676
 C 2.394414 0.119974 -2.584996
 C 4.559127 -0.330661 -1.462480
 C 5.441052 -1.317787 -1.531827
 H 2.608324 -0.036818 2.083924
 H 4.115471 -0.477923 1.273520
 H 2.737574 -1.575378 1.229010
 H 2.796696 1.207302 -0.068176
 H 1.437542 0.103844 -0.109063
 H 2.849112 -1.562978 -1.334724
 H 2.605941 1.191495 -2.654092
 H 1.309456 -0.001777 -2.527913
 H 2.744320 -0.348943 -3.506933
 H 4.916736 0.699648 -1.488829
 H 5.128512 -2.357586 -1.509243
 H 6.504782 -1.126362 -1.615849