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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-5255.812274
Energy at 298.15K-5255.818106
HF Energy-5255.812274
Nuclear repulsion energy444.969873
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**
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 1853 1828 284.31      
2 A1 416 410 6.01      
3 A1 181 178 0.29      
4 B1 503 497 1.52      
5 B2 710 700 448.54      
6 B2 327 322 5.98      

Unscaled Zero Point Vibrational Energy (zpe) 1994.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 1967.4 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**
ABC
0.20006 0.04170 0.03451

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.796
O2 0.000 0.000 1.986
Br3 0.000 1.600 -0.295
Br4 0.000 -1.600 -0.295

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.18941.93711.9371
O21.18942.78622.7862
Br31.93712.78623.2009
Br41.93712.78623.2009

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 124.288 O2 C1 Br4 124.288
Br3 C1 Br4 111.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.295      
2 O -0.266      
3 Br -0.014      
4 Br -0.014      


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 -1.091 1.091
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.042 0.000 0.000
y 0.000 -43.902 0.000
z 0.000 0.000 -48.881
Traceless
 xyz
x 0.349 0.000 0.000
y 0.000 3.560 0.000
z 0.000 0.000 -3.909
Polar
3z2-r2-7.817
x2-y2-2.141
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.113 0.000 0.000
y 0.000 10.486 0.000
z 0.000 0.000 6.945


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