%chk=BF4_optimisation.chk
# opt b3lyp/6-311+g(d,p) geom=connectivity scf=conver=9 int=ultrafine

optimisation of BF4 anion

-1 1
 F                 -0.10069151    1.59792869    1.10227059
 F                 -1.90069930    0.96155508    0.00000000
 F                 -0.10071474   -0.31125922    0.00000000
 F                 -0.10069151    1.59792869   -1.10227059
 B                 -0.55069930    0.96153845    0.00000000

 1 5 1.0
 2 5 1.0
 3 5 1.0
 4 5 1.0
 5