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

using model chemistry: MP4/TZVP

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 MP4/TZVP
 hartrees
Energy at 0K-2573.245617
Energy at 298.15K-2573.248595
HF Energy-2572.997992
Nuclear repulsion energy13.127730
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 MP4/TZVP
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 2700 2599        

Unscaled Zero Point Vibrational Energy (zpe) 1349.7 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 1299.7 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 MP4/TZVP
B
8.51146

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.000 -1.372
Br2 0.000 0.000 0.039

Atom - Atom Distances (Å)
  H1 Br2
H11.4108
Br21.4108

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