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

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-5261.727118
Energy at 298.15K-5261.732978
HF Energy-5261.727118
Nuclear repulsion energy442.451669
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/TZVP
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 1893 1827 391.25      
2 A1 411 397 7.36      
3 A1 174 168 0.50      
4 B1 515 497 2.01      
5 B2 723 698 505.77      
6 B2 342 330 8.55      

Unscaled Zero Point Vibrational Energy (zpe) 2028.4 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 1958.3 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/TZVP
ABC
0.20585 0.04056 0.03389

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.787
O2 0.000 0.000 1.957
Br3 0.000 1.623 -0.291
Br4 0.000 -1.623 -0.291

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.16931.94821.9482
O21.16932.77212.7721
Br31.94822.77213.2453
Br41.94822.77213.2453

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 123.605 O2 C1 Br4 123.605
Br3 C1 Br4 112.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.173      
2 O -0.142      
3 Br -0.015      
4 Br -0.015      


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 -1.187 1.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.875 0.000 0.000
y 0.000 -44.909 0.000
z 0.000 0.000 -50.444
Traceless
 xyz
x 0.801 0.000 0.000
y 0.000 3.751 0.000
z 0.000 0.000 -4.552
Polar
3z2-r2-9.104
x2-y2-1.967
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.154 0.000 0.000
y 0.000 11.122 0.000
z 0.000 0.000 7.135


<r2> (average value of r2) Å2
<r2> 254.190
(<r2>)1/2 15.943