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All results from a given calculation for COBr2 (Carbonic dibromide)

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-5261.566571
Energy at 298.15K-5261.572484
HF Energy-5261.566571
Nuclear repulsion energy446.457303
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 B3PW91/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1914 1847 359.64      
2 A1 432 417 6.87      
3 A1 182 175 0.24      
4 B1 522 504 2.65      
5 B2 750 723 487.67      
6 B2 347 335 4.78      

Unscaled Zero Point Vibrational Energy (zpe) 2072.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 2000.2 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 B3PW91/cc-pVDZ
ABC
0.20556 0.04163 0.03462

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.784
O2 0.000 0.000 1.959
Br3 0.000 1.602 -0.291
Br4 0.000 -1.602 -0.291

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.17521.92921.9292
O21.17522.76222.7622
Br31.92922.76223.2035
Br41.92922.76223.2035

picture of Carbonic dibromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 Br3 123.872 O2 C1 Br4 123.872
Br3 C1 Br4 112.255
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.014      
2 O -0.078      
3 Br 0.032      
4 Br 0.032      


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 -1.062 1.062
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.185 0.000 0.000
y 0.000 -44.210 0.000
z 0.000 0.000 -48.985
Traceless
 xyz
x 0.413 0.000 0.000
y 0.000 3.375 0.000
z 0.000 0.000 -3.787
Polar
3z2-r2-7.575
x2-y2-1.975
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.352 0.000 0.000
y 0.000 9.861 0.000
z 0.000 0.000 6.282


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000