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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-140.045698
Energy at 298.15K-140.051482
HF Energy-140.045698
Nuclear repulsion energy72.181294
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 B3LYP/SDD
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 1772 1704 395.18      
2 A1 393 378 8.66      
3 A1 173 166 0.29      
4 B1 492 473 2.19      
5 B2 686 660 506.83      
6 B2 336 323 5.09      

Unscaled Zero Point Vibrational Energy (zpe) 1926.2 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 1851.7 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 B3LYP/SDD
ABC
0.19600 0.03902 0.03254

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.802
O2 0.000 0.000 2.007
Br3 0.000 1.655 -0.298
Br4 0.000 -1.655 -0.298

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.20471.98691.9869
O21.20472.83722.8372
Br31.98692.83723.3091
Br41.98692.83723.3091

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 123.622 O2 C1 Br4 123.622
Br3 C1 Br4 112.756
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.145      
2 O -0.068      
3 Br 0.107      
4 Br 0.107      


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 -1.279 1.279
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.498 0.000 0.000
y 0.000 -39.372 0.000
z 0.000 0.000 -44.489
Traceless
 xyz
x 1.433 0.000 0.000
y 0.000 3.121 0.000
z 0.000 0.000 -4.554
Polar
3z2-r2-9.107
x2-y2-1.126
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.972 0.000 0.000
y 0.000 10.743 0.000
z 0.000 0.000 5.953


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