    23
 geometry
 C                     0.00000000     0.00000000    -1.90131660
 C                    -0.69355128     0.00000000     0.43973652
 C                    -1.17330566     0.00000000    -0.95352831
 C                     1.17330566     0.00000000    -0.95352831
 C                     0.69355128     0.00000000     0.43973652
 C                    -1.62208632     0.00000000     1.55185438
 C                    -2.52087175     0.00000000    -1.20845208
 C                     2.52087175     0.00000000    -1.20845208
 C                     1.62208632     0.00000000     1.55185438
 C                    -2.96021686     0.00000000     1.26756557
 C                    -3.40567477     0.00000000    -0.09863323
 C                     3.40567477     0.00000000    -0.09863323
 C                     2.96021686     0.00000000     1.26756557
 H                     0.00000000     0.88061442    -2.55965838
 H                     0.00000000    -0.88061442    -2.55965838
 H                    -1.26288739     0.00000000     2.57660542
 H                    -2.91996791     0.00000000    -2.21890165
 H                     2.91996791     0.00000000    -2.21890165
 H                     1.26288739     0.00000000     2.57660542
 H                    -3.70111252     0.00000000     2.06156651
 H                    -4.47791697     0.00000000    -0.28853407
 H                     4.47791697     0.00000000    -0.28853407
 H                     3.70111252     0.00000000     2.06156651
