    23
 geometry
 C                     0.00000000     0.00000000    -1.80218280
 C                    -0.72199856     0.00000000     0.49946226
 C                    -1.17910570     0.00000000    -0.88476886
 C                     1.17910570     0.00000000    -0.88476886
 C                     0.72199856     0.00000000     0.49946226
 C                    -1.64631270     0.00000000     1.54320327
 C                    -2.54821787     0.00000000    -1.20268621
 C                     2.54821787     0.00000000    -1.20268621
 C                     1.64631270     0.00000000     1.54320327
 C                    -3.02018369     0.00000000     1.20962659
 C                    -3.46258577     0.00000000    -0.15334458
 C                     3.46258577     0.00000000    -0.15334458
 C                     3.02018369     0.00000000     1.20962659
 H                     0.00000000     0.86930240    -2.48869616
 H                     0.00000000    -0.86930240    -2.48869616
 H                    -1.34377061     0.00000000     2.58638336
 H                    -2.88605187     0.00000000    -2.23548634
 H                     2.88605187     0.00000000    -2.23548634
 H                     1.34377061     0.00000000     2.58638336
 H                    -3.76264619     0.00000000     2.00396407
 H                    -4.53003411     0.00000000    -0.35760361
 H                     4.53003411     0.00000000    -0.35760361
 H                     3.76264619     0.00000000     2.00396407
