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

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-5256.157736
Energy at 298.15K-5256.163638
HF Energy-5256.157736
Nuclear repulsion energy450.595935
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 PBEPBE/6-31G(2df,p)
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 1831 1813 258.14      
2 A1 435 431 4.86      
3 A1 184 182 0.27      
4 B1 522 517 1.06      
5 B2 741 733 416.04      
6 B2 341 337 1.83      

Unscaled Zero Point Vibrational Energy (zpe) 2026.7 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 2005.9 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 PBEPBE/6-31G(2df,p)
ABC
0.20562 0.04272 0.03537

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
O2 0.000 0.000 1.962
Br3 0.000 1.581 -0.291
Br4 0.000 -1.581 -0.291

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.18711.90691.9069
O21.18712.75242.7524
Br31.90692.75243.1625
Br41.90692.75243.1625

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 123.980 O2 C1 Br4 123.980
Br3 C1 Br4 112.040
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.043      
2 O -0.135      
3 Br 0.089      
4 Br 0.089      


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 -1.041 1.041
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.693 0.000 0.000
y 0.000 -43.938 0.000
z 0.000 0.000 -48.892
Traceless
 xyz
x 0.722 0.000 0.000
y 0.000 3.355 0.000
z 0.000 0.000 -4.077
Polar
3z2-r2-8.154
x2-y2-1.755
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.381 0.000 0.000
y 0.000 11.216 0.000
z 0.000 0.000 7.737


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