12
Benzene molecule
C  0.0  1.4  0.0
C  1.212  0.7  0.0
C  1.212  -0.7  0.0
C  0.0  -1.4  0.0
C  -1.212  -0.7  0.0
C  -1.212  0.7  0.0
H  0.0  2.48  0.0
H  2.147  1.24  0.0
H  2.147  -1.24  0.0
H  0.0  -2.48  0.0
H  -2.147  -1.24  0.0
H  -2.147  1.24  0.0