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

using model chemistry: ROHF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at ROHF/aug-cc-pVTZ
 hartrees
Energy at 0K-5257.686037
Energy at 298.15K-5257.692118
HF Energy-5257.686037
Nuclear repulsion energy449.990473
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 ROHF/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2044 2044 451.37      
2 A1 463 463 4.95      
3 A1 194 194 0.31      
4 B1 578 578 5.83      
5 B2 841 841 514.08      
6 B2 395 395 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 2257.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2257.5 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 ROHF/aug-cc-pVTZ
ABC
0.21633 0.04170 0.03496

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.762
O2 0.000 0.000 1.911
Br3 0.000 1.600 -0.284
Br4 0.000 -1.600 -0.284

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.14911.91161.9116
O21.14912.71612.7161
Br31.91162.71613.2009
Br41.91162.71613.2009

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 123.151 O2 C1 Br4 123.151
Br3 C1 Br4 113.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.256      
2 O -0.424      
3 Br 0.084      
4 Br 0.084      


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 -1.327 1.327
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.918 0.000 0.000
y 0.000 -45.015 0.000
z 0.000 0.000 -51.079
Traceless
 xyz
x 1.129 0.000 0.000
y 0.000 3.984 0.000
z 0.000 0.000 -5.113
Polar
3z2-r2-10.225
x2-y2-1.903
xy0.000
xz0.000
yz0.000


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


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