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All results from a given calculation for LiBr (Lithium Bromide)

using model chemistry: MP4/6-31G*

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 MP4/6-31G*
 hartrees
Energy at 0K-2577.560547
Energy at 298.15K 
HF Energy-2577.428849
Nuclear repulsion energy25.302603
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 MP4/6-31G*
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 581 555        

Unscaled Zero Point Vibrational Energy (zpe) 290.6 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 277.5 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 MP4/6-31G*
B
0.54259

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.023
Br2 0.000 0.000 0.173

Atom - Atom Distances (Å)
  Li1 Br2
Li12.1959
Br22.1959

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