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

using model chemistry: CCD/6-31G(2df,p)

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 CCD/6-31G(2df,p)
 hartrees
Energy at 0K-5140.451042
Energy at 298.15K 
HF Energy-5140.117948
Nuclear repulsion energy284.312981
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 CCD/6-31G(2df,p)
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 335 317 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 167.3 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 158.4 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 CCD/6-31G(2df,p)
B
0.08218

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 0.000 0.000 1.140
Br2 0.000 0.000 -1.140

Atom - Atom Distances (Å)
  Br1 Br2
Br12.2800
Br22.2800

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