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

using model chemistry: PBEPBE/6-31G

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 PBEPBE/6-31G
 hartrees
Energy at 0K-5142.308607
Energy at 298.15K 
HF Energy-5142.308607
Nuclear repulsion energy262.741802
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 PBEPBE/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 Σg 281 277 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 140.3 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 138.3 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 PBEPBE/6-31G
B
0.07018

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 0.000 0.000 1.234
Br2 0.000 0.000 -1.234

Atom - Atom Distances (Å)
  Br1 Br2
Br12.4672
Br22.4672

picture of Bromine diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G 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 -37.322 0.000 0.000
y 0.000 -37.322 0.000
z 0.000 0.000 -32.758
Traceless
 xyz
x -2.282 0.000 0.000
y 0.000 -2.282 0.000
z 0.000 0.000 4.564
Polar
3z2-r29.128
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 0.902 0.000 0.000
y 0.000 0.902 0.000
z 0.000 0.000 7.940


<r2> (average value of r2) Å2
<r2> 128.886
(<r2>)1/2 11.353