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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-5236.288686
Energy at 298.15K-5236.294488
HF Energy-5236.288686
Nuclear repulsion energy434.780655
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/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 1839 1774 282.91      
2 A1 390 377 8.23      
3 A1 170 164 0.03      
4 B1 513 495 3.19      
5 B2 694 669 462.69      
6 B2 332 320 3.76      

Unscaled Zero Point Vibrational Energy (zpe) 1968.6 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 1899.5 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/3-21G
ABC
0.19519 0.03946 0.03282

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.816
O2 0.000 0.000 2.007
Br3 0.000 1.645 -0.299
Br4 0.000 -1.645 -0.299

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.19081.98751.9875
O21.19082.83262.8326
Br31.98752.83263.2905
Br41.98752.83263.2905

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 124.125 O2 C1 Br4 124.125
Br3 C1 Br4 111.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.011      
2 O -0.316      
3 Br 0.163      
4 Br 0.163      


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 -1.028 1.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.285 0.000 0.000
y 0.000 -45.170 0.000
z 0.000 0.000 -49.497
Traceless
 xyz
x 1.048 0.000 0.000
y 0.000 2.721 0.000
z 0.000 0.000 -3.769
Polar
3z2-r2-7.539
x2-y2-1.115
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.686 0.000 0.000
y 0.000 9.605 0.000
z 0.000 0.000 5.131


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