%chk=TlBr3 image.chk
%mem=6MW
%nproc=1
# hf geom=connectivity

TlBr3 optimisation

0 1
 Tl
 Br                 1              B1
 Br                 1              B2    2              A1
 Br                 1              B3    3              A2    2              D1

   B1             2.66198600
   B2             2.66198557
   B3             2.66198557
   A1           120.00000539
   A2           119.99998923
   D1           180.00000000

 1 2 1.0 3 1.0 4 1.0
 2
 3
 4