12

C          0.39773       -0.68889        0.83821
C          0.39773        0.68889        0.83821
C         -0.79546        0.00000        0.83821
C          0.39773        0.68889       -0.83821
C          0.39773       -0.68889       -0.83821
C         -0.79546        0.00000       -0.83821
H          0.72793       -1.26080        1.63375
H          0.72793        1.26080        1.63375
H         -1.45585        0.00000        1.63375
H          0.72793        1.26080       -1.63375
H          0.72793       -1.26080       -1.63375
H         -1.45585        0.00000       -1.63375
