12_dibromoethane
     8
   0.6190000  -0.7310000   0.5280000   1.1140000  -1.8290000  -0.3810000
  -0.4980000  -1.5000000   1.9240000   2.1860000  -1.0540000  -1.8090000
   1.4360000  -0.2090000   1.0340000   0.0000000  -0.0000000   0.0000000
   0.2960000  -2.3710000  -0.8630000   1.7580000  -2.5430000   0.1400000