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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-5238.835385
Energy at 298.15K-5238.841124
HF Energy-5238.835385
Nuclear repulsion energy 
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 B97D3/3-21G
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 1779 1749 253.76      
2 A1 378 372 7.60      
3 A1 166 163 0.07      
4 B1 496 488 2.01      
5 B2 662 651 443.03      
6 B2 317 312 6.43      

Unscaled Zero Point Vibrational Energy (zpe) 1899.4 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 1867.1 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 B97D3/3-21G
ABC
0.19138 0.03916 0.03251

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.825
O2 0.000 0.000 2.026
Br3 0.000 1.651 -0.302
Br4 0.000 -1.651 -0.302

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.20071.99961.9996
O21.20072.85442.8544
Br31.99962.85443.3028
Br41.99962.85443.3028

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 124.324 O2 C1 Br4 124.324
Br3 C1 Br4 111.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.009      
2 O -0.311      
3 Br 0.160      
4 Br 0.160      


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 -1.026 1.026
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.949 0.000 0.000
y 0.000 -44.637 0.000
z 0.000 0.000 -48.993
Traceless
 xyz
x 0.866 0.000 0.000
y 0.000 2.834 0.000
z 0.000 0.000 -3.700
Polar
3z2-r2-7.400
x2-y2-1.313
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.721 0.000 0.000
y 0.000 9.857 0.000
z 0.000 0.000 5.274


<r2> (average value of r2) Å2
<r2> 263.269
(<r2>)1/2 16.226