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All results from a given calculation for HBr (hydrogen bromide)

using model chemistry: CCD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-2570.606672
Energy at 298.15K-2570.609650
HF Energy-2570.471647
Nuclear repulsion energy13.145926
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCD/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2720 2550 3.75      

Unscaled Zero Point Vibrational Energy (zpe) 1360.1 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 1275.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CCD/6-31G**
B
8.53427

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.000 -1.370
Br2 0.000 0.000 0.039

Atom - Atom Distances (Å)
  H1 Br2
H11.4089
Br21.4089

picture of hydrogen bromide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability