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

using model chemistry: B3PW91/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-5261.748548
Energy at 298.15K-5261.754474
HF Energy-5261.748548
Nuclear repulsion energy447.872532
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-pVTZ
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 1897 1824 351.20      
2 A1 436 419 6.22      
3 A1 180 173 0.34      
4 B1 526 506 2.27      
5 B2 752 723 484.57      
6 B2 352 338 3.34      

Unscaled Zero Point Vibrational Energy (zpe) 2071.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 1991.8 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-pVTZ
ABC
0.20777 0.04182 0.03481

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.779
O2 0.000 0.000 1.949
Br3 0.000 1.598 -0.290
Br4 0.000 -1.598 -0.290

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.17001.92251.9225
O21.17002.75052.7505
Br31.92252.75053.1962
Br41.92252.75053.1962

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 123.769 O2 C1 Br4 123.769
Br3 C1 Br4 112.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.124      
2 O -0.125      
3 Br 0.000      
4 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 -1.140 1.140
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.337 0.000 0.000
y 0.000 -44.480 0.000
z 0.000 0.000 -49.620
Traceless
 xyz
x 0.713 0.000 0.000
y 0.000 3.499 0.000
z 0.000 0.000 -4.212
Polar
3z2-r2-8.424
x2-y2-1.858
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.667 0.000 0.000
y 0.000 11.079 0.000
z 0.000 0.000 7.423


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