trans-Difluorodiazene
  -ISIS-            3D
r23 N2F2 FN=NF
  4  3  0  0  0  0  0  0  0  0  0
    0.0000    0.0000    0.0000 N   0  0  0  0  0
    1.2441    0.0000    0.0000 N   0  0  0  0  0
    1.7701    1.2409    0.0000 F   0  0  0  0  0
   -0.5258   -1.2409   -0.0000 F   0  0  0  0  0
  1  2  2  0  0  0
  1  4  1  0  0  0
  2  3  1  0  0  0
M  END