    20
 geometry
 C                     0.74391300    -0.71550150     0.00000000
 C                    -0.74391300     0.71550150     0.00000000
 C                     0.74391300     0.71550150     0.00000000
 C                    -0.74391300    -0.71550150     0.00000000
 C                     1.50019076    -1.88925271     0.00000000
 C                    -1.50019076     1.88925271     0.00000000
 C                     1.50019076     1.88925271     0.00000000
 C                    -1.50019076    -1.88925271     0.00000000
 C                     0.72735305    -3.04781546     0.00000000
 C                    -0.72735305     3.04781546     0.00000000
 C                     0.72735305     3.04781546     0.00000000
 C                    -0.72735305    -3.04781546     0.00000000
 H                     2.58575908    -1.91721181     0.00000000
 H                    -2.58575908     1.91721181     0.00000000
 H                     2.58575908     1.91721181     0.00000000
 H                    -2.58575908    -1.91721181     0.00000000
 H                     1.22157550    -4.01708264     0.00000000
 H                    -1.22157550     4.01708264     0.00000000
 H                     1.22157550     4.01708264     0.00000000
 H                    -1.22157550    -4.01708264     0.00000000
