11_difluoroethane
     8
  -0.2180000   0.5510000   0.9190000   0.4580000  -0.0920000   2.1030000
   0.2140000   0.6400000   3.2170000   1.8010000  -0.0870000   1.9150000
   0.1430000   1.5760000   0.7870000  -0.0010000  -0.0000000   0.0000000
  -1.3010000   0.5950000   1.0670000   0.1240000  -1.1190000   2.2690000