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All results from a given calculation for Br2 (Bromine diatomic)

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-25.829954
Energy at 298.15K 
HF Energy-25.829954
Nuclear repulsion energy10.532987
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 HF/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 299 269 0.00 38.48 0.34 0.51

Unscaled Zero Point Vibrational Energy (zpe) 149.5 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 134.5 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 HF/LANL2DZ
B
0.07049

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 0.000 0.000 1.231
Br2 0.000 0.000 -1.231

Atom - Atom Distances (Å)
  Br1 Br2
Br12.4618
Br22.4618

picture of Bromine diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Br 0.000      
2 Br 0.000      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.452 0.000 0.000
y 0.000 -31.452 0.000
z 0.000 0.000 -27.946
Traceless
 xyz
x -1.753 0.000 0.000
y 0.000 -1.753 0.000
z 0.000 0.000 3.506
Polar
3z2-r27.013
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 0.054 0.000 0.000
y 0.000 0.054 0.000
z 0.000 0.000 10.006


<r2> (average value of r2) Å2
<r2> 40.125
(<r2>)1/2 6.334