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

using model chemistry: LSDA/aug-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 LSDA/aug-cc-pVTZ
 hartrees
Energy at 0K-5255.578616
Energy at 298.15K-5255.584544
HF Energy-5255.578616
Nuclear repulsion energy452.485791
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/aug-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 1865 1848 321.06      
2 A1 447 442 5.48      
3 A1 181 180 0.45      
4 B1 517 512 0.75      
5 B2 756 749 441.04      
6 B2 347 344 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 2056.3 cm-1
Scaled (by 0.9906) Zero Point Vibrational Energy (zpe) 2037.0 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/aug-cc-pVTZ
ABC
0.20814 0.04301 0.03564

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
O2 0.000 0.000 1.949
Br3 0.000 1.576 -0.289
Br4 0.000 -1.576 -0.289

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.17431.90121.9012
O21.17432.73702.7370
Br31.90122.73703.1517
Br41.90122.73703.1517

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 124.018 O2 C1 Br4 124.018
Br3 C1 Br4 111.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.046      
2 O -0.352      
3 Br 0.199      
4 Br 0.199      


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 -1.276 1.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.521 0.000 0.000
y 0.000 -44.334 0.000
z 0.000 0.000 -50.135
Traceless
 xyz
x 0.713 0.000 0.000
y 0.000 3.994 0.000
z 0.000 0.000 -4.707
Polar
3z2-r2-9.414
x2-y2-2.187
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.461 0.000 0.000
y 0.000 12.407 0.000
z 0.000 0.000 8.949


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