    8
 
 C     0.763673     0.000000    -0.000001
 C    -0.763673     0.000000     0.000001
 H     1.156384    -0.954607    -0.336201
 H     1.156384     0.768460    -0.658615
 H     1.156386     0.186145     0.994811
 H    -1.156384     0.954761     0.335764
 H    -1.156386    -0.186601    -0.994726
 H    -1.156384    -0.768158     0.658967
