18 charge = 0 C 1.127709 0.396199 -0.615925 C 2.440709 -0.005461 0.040319 C 3.237408 -0.920730 -0.882945 C 3.306390 1.157442 0.483523 C 3.422676 2.435299 -0.291179 C 2.764620 2.428457 1.057861 H 1.296351 0.919414 -1.561228 H 0.521945 1.039581 0.025626 H 0.533939 -0.492921 -0.840846 H 2.193551 -0.575978 0.945840 H 3.513035 -0.394605 -1.801819 H 2.657052 -1.803868 -1.162903 H 4.159748 -1.262466 -0.406052 H 4.236721 0.825073 0.937009 H 2.781647 2.574054 -1.152986 H 4.400225 2.891302 -0.387645 H 1.690919 2.566912 1.087940 H 3.291745 2.876815 1.891001