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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-5256.656747
Energy at 298.15K-5256.662653
HF Energy-5256.656747
Nuclear repulsion energy448.320508
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 B3PW91/6-31G*
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 1922 1839 328.58      
2 A1 432 413 6.36      
3 A1 187 179 0.28      
4 B1 526 503 2.76      
5 B2 753 720 475.81      
6 B2 346 331 3.31      

Unscaled Zero Point Vibrational Energy (zpe) 2083.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 1992.8 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 B3PW91/6-31G*
ABC
0.20487 0.04218 0.03498

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.785
O2 0.000 0.000 1.963
Br3 0.000 1.591 -0.292
Br4 0.000 -1.591 -0.292

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.17771.92131.9213
O21.17772.75942.7594
Br31.92132.75943.1827
Br41.92132.75943.1827

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 124.080 O2 C1 Br4 124.080
Br3 C1 Br4 111.839
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.337      
2 O -0.296      
3 Br -0.020      
4 Br -0.020      


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 -1.183 1.183
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.994 0.000 0.000
y 0.000 -43.857 0.000
z 0.000 0.000 -49.157
Traceless
 xyz
x 0.512 0.000 0.000
y 0.000 3.719 0.000
z 0.000 0.000 -4.232
Polar
3z2-r2-8.463
x2-y2-2.138
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.079 0.000 0.000
y 0.000 10.068 0.000
z 0.000 0.000 6.759


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