%chk=H:\1styearlabs\NH3_optimisation_final.chk
# opt freq b3lyp/6-31g(d,p) geom=connectivity integral=grid=ultrafine
pop(full,nbo)

Title Card Required

0 1
 N                 -0.18575851   -2.12074300    0.00000000
 H                  0.24755995   -3.34640001    0.00000000
 H                  0.24758232   -1.50792277    1.06144575
 H                  0.24758232   -1.50792277   -1.06144575

 1 2 1.0 3 1.0 4 1.0
 2
 3
 4