18
 
C    -4.2977311   -0.2046706    0.0000000 
C    -3.1048049    0.4040864    0.0000000 
C    -1.8333444   -0.2818870    0.0000000 
C    -0.6340964    0.3389721    0.0000000 
C     0.6340964   -0.3389721    0.0000000 
C     1.8333444    0.2818870    0.0000000 
C     3.1048049   -0.4040864    0.0000000 
C     4.2977311    0.2046706    0.0000000 
H    -4.3830321   -1.2859953    0.0000000 
H    -5.2217554    0.3589579    0.0000000 
H    -3.0673416    1.4911207    0.0000000 
H    -1.8632660   -1.3695558    0.0000000 
H    -0.6088279    1.4269166    0.0000000 
H     0.6088279   -1.4269166    0.0000000 
H     1.8632660    1.3695558    0.0000000 
H     3.0673416   -1.4911207    0.0000000 
H     4.3830321    1.2859953    0.0000000 
H     5.2217554   -0.3589579    0.0000000 
