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

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-5250.591591
Energy at 298.15K-5250.597520
HF Energy-5250.591591
Nuclear repulsion energy452.677416
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 LSDA/6-31+G**
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 1857 1829 337.73      
2 A1 440 433 6.05      
3 A1 183 180 0.39      
4 B1 537 529 0.64      
5 B2 747 736 473.53      
6 B2 353 348 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 2057.8 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 2026.9 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 LSDA/6-31+G**
ABC
0.20957 0.04294 0.03564

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.760
O2 0.000 0.000 1.946
Br3 0.000 1.577 -0.288
Br4 0.000 -1.577 -0.288

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.18671.89321.8932
O21.18672.73472.7347
Br31.89322.73473.1542
Br41.89322.73473.1542

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 123.589 O2 C1 Br4 123.589
Br3 C1 Br4 112.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.082      
2 O -0.159      
3 Br 0.039      
4 Br 0.039      


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 -1.463 1.463
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.745 0.000 0.000
y 0.000 -44.241 0.000
z 0.000 0.000 -50.608
Traceless
 xyz
x 0.680 0.000 0.000
y 0.000 4.435 0.000
z 0.000 0.000 -5.115
Polar
3z2-r2-10.230
x2-y2-2.503
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.162 0.000 0.000
y 0.000 11.281 0.000
z 0.000 0.000 7.966


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