with ~re CBr and CH bond lengths.
C
H,1,B1
H,1,B2,2,A1
C,1,B3,3,A2,2,D1,0
H,4,B4,1,A3,3,D2,0
C,1,B5,4,A4,5,D3,0
H,6,B6,1,A5,4,D4,0
C,6,B7,1,A6,4,D5,0
H,8,B8,6,A7,1,D6,0
H,8,B9,6,A8,1,D7,0
C,4,B10,1,A9,6,D8,0
H,11,B11,4,A10,1,D9,0
H,11,B12,4,A11,1,D10,0
C,11,B13,4,A12,1,D11,0
H,14,B14,11,A13,4,D12,0
C,14,B15,11,A14,4,D13,0
H,16,B16,14,A15,11,D14,0
H,16,B17,14,A16,11,D15,0
C,4,B18,1,A17,6,D16,0
H,19,B19,4,A18,1,D17,0
H,19,B20,4,A19,1,D18,0
C,6,B21,1,A20,4,D19,0
H,22,B22,6,A21,1,D20,0
H,22,B23,6,A22,1,D21,0
C,22,B24,6,A23,1,D22,0
Br,25,B25,22,A24,6,D23,0
Variables:
B1= 1.095
B2= 1.095
B3=1.53563061
B4= 1.095
B5=1.53563061
B6= 1.095
B7=1.53563061
B8= 1.095
B9= 1.095
B10=1.53563061
B11= 1.095
B12= 1.095
B13=1.53563061
B14= 1.095
B15=1.53973332
B16= 1.094
B17= 1.094
B18=1.53973332
B19= 1.094
B20= 1.094
B21=1.53973332
B22= 1.094
B23= 1.094
B24=1.52933612
B25=1.9642
A1=107.46473489
A2=110.00315768
A3=109.79648805
A4=109.47315458
A5=109.79648805
A6=109.59899226
A7=109.93680001
A8=110.00315768
A9=109.59899226
A10=110.00315768
A11=109.93680001
A12=109.47315458
A13=109.79648805
A14=109.40697573
A15=110.42530182
A16=110.42530182
A17=109.40697573
A18=110.42530182
A19=110.42530182
A20=109.40697573
A21=110.42530182
A22=110.42530182
A23=108.78507046
A24=108.78646845
D1=119.66600689
D2=-58.49162658
D3=-179.47827662
D4=179.47827662
D5=-59.84082295
D6=-61.02198256
D7=-179.17252702
D8=59.84082295
D9=179.17252702
D10=61.02198256
D11=-59.84082295
D12=-179.47827662
D13=-60.1192943
D14=-179.51699572
D15=-60.40518388
D16=-60.1192943
D17=-60.40518388
D18=-179.51699572
D19=60.1192943
D20=60.40518388
D21=179.51699572
D22=-60.0389102
D23=180.
