%chk=\\icfs16.cc.ic.ac.uk\bw08\Desktop\BCl4- opt.chk
# opt b3lyp/6-31g geom=connectivity

BCl4opt

-1 1
 B                 -0.55223880    0.55223880    0.00000000
 Cl                 0.07110532    1.43375713   -1.52684889
 Cl                -2.42223880    0.55226184    0.00000000
 Cl                 0.07107314   -1.21082167    0.00000000
 Cl                 0.07110532    1.43375713    1.52684889

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