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

using model chemistry: LSDA/3-21G

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 LSDA/3-21G
 hartrees
Energy at 0K-5117.897333
Energy at 298.15K 
HF Energy-5117.897333
Nuclear repulsion energy265.847774
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 LSDA/3-21G
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 304 299 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 152.1 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 149.6 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 LSDA/3-21G
B
0.07185

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 0.000 0.000 1.219
Br2 0.000 0.000 -1.219

Atom - Atom Distances (Å)
  Br1 Br2
Br12.4384
Br22.4384

picture of Bromine diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G 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 -36.762 0.000 0.000
y 0.000 -36.762 0.000
z 0.000 0.000 -32.232
Traceless
 xyz
x -2.265 0.000 0.000
y 0.000 -2.265 0.000
z 0.000 0.000 4.530
Polar
3z2-r29.059
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 0.768 0.000 0.000
y 0.000 0.768 0.000
z 0.000 0.000 7.331


<r2> (average value of r2) Å2
<r2> 126.069
(<r2>)1/2 11.228