BF4 - Model conformer
     RDKit          3D

  5  4  0  0  0  0  0  0  0  0999 V2000
   -1.5230    1.7060   20.0140 Be  0  0  0  0  0  4  0  0  0  0  0  0
   -0.6500    2.9090   20.0820 F   0  0  0  0  0  0  0  0  0  0  0  0
   -0.9730    0.6980   19.0580 F   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5770    1.0970   21.3620 F   0  0  0  0  0  0  0  0  0  0  0  0
   -2.8880    2.1240   19.5690 F   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0
  1  3  1  0
  1  4  1  0
  1  5  1  0
M  CHG  1   1  -2
M  END
$$$$
