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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-5262.255584
Energy at 298.15K-5262.261518
HF Energy-5262.255584
Nuclear repulsion energy448.331727
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 B1B95/6-311G**
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 1933 1856 384.09      
2 A1 437 420 7.33      
3 A1 181 174 0.29      
4 B1 525 504 3.13      
5 B2 763 733 528.09      
6 B2 356 341 4.02      

Unscaled Zero Point Vibrational Energy (zpe) 2097.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 2013.7 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 B1B95/6-311G**
ABC
0.20935 0.04181 0.03485

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
O2 0.000 0.000 1.942
Br3 0.000 1.598 -0.288
Br4 0.000 -1.598 -0.288

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.16641.92001.9200
O21.16642.74392.7439
Br31.92002.74393.1965
Br41.92002.74393.1965

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 123.652 O2 C1 Br4 123.652
Br3 C1 Br4 112.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.067      
2 O -0.181      
3 Br 0.057      
4 Br 0.057      


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 -1.162 1.162
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.443 0.000 0.000
y 0.000 -44.545 0.000
z 0.000 0.000 -49.522
Traceless
 xyz
x 0.590 0.000 0.000
y 0.000 3.438 0.000
z 0.000 0.000 -4.028
Polar
3z2-r2-8.056
x2-y2-1.898
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.444 0.000 0.000
y 0.000 10.159 0.000
z 0.000 0.000 6.488


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