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

using model chemistry: mPW1PW91/6-311+G(3df,2p)

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 mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-2581.905668
Energy at 298.15K 
HF Energy-2581.905668
Nuclear repulsion energy25.526738
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 mPW1PW91/6-311+G(3df,2p)
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 559 559 110.95 18.50 0.07 0.13

Unscaled Zero Point Vibrational Energy (zpe) 279.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 279.5 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 mPW1PW91/6-311+G(3df,2p)
B
0.55221

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -2.005
Br2 0.000 0.000 0.172

Atom - Atom Distances (Å)
  Li1 Br2
Li12.1767
Br22.1767

picture of Lithium Bromide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.351      
2 Br -0.351      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -7.173 7.173
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.766 0.000 0.000
y 0.000 -22.766 0.000
z 0.000 0.000 -4.425
Traceless
 xyz
x -9.171 0.000 0.000
y 0.000 -9.171 0.000
z 0.000 0.000 18.341
Polar
3z2-r236.682
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.047 0.000 0.000
y 0.000 5.047 0.000
z 0.000 0.000 5.599


<r2> (average value of r2) Å2
<r2> 23.493
(<r2>)1/2 4.847