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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-5257.595704
Energy at 298.15K-5257.601780
HF Energy-5257.595704
Nuclear repulsion energy450.146839
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 HF/Def2TZVPP
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 2049 1857 461.03      
2 A1 464 420 5.24      
3 A1 194 176 0.26      
4 B1 581 526 6.72      
5 B2 843 764 525.42      
6 B2 395 358 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 2262.3 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 2050.5 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 HF/Def2TZVPP
ABC
0.21659 0.04172 0.03498

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

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 1.909
Br3 0.000 1.599 -0.283
Br4 0.000 -1.599 -0.283

Atom - Atom Distances (Å)
  C1 O2 Br3 Br4
C11.14891.90971.9097
O21.14892.71382.7138
Br31.90972.71383.1987
Br41.90972.71383.1987

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 123.125 O2 C1 Br4 123.125
Br3 C1 Br4 113.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.276      
2 O -0.251      
3 Br -0.013      
4 Br -0.013      


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 -1.320 1.320
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.807 0.000 0.000
y 0.000 -45.023 0.000
z 0.000 0.000 -50.967
Traceless
 xyz
x 1.188 0.000 0.000
y 0.000 3.864 0.000
z 0.000 0.000 -5.052
Polar
3z2-r2-10.104
x2-y2-1.783
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.118 0.000 0.000
y 0.000 10.518 0.000
z 0.000 0.000 7.278


<r2> (average value of r2) Å2
<r2> 247.224
(<r2>)1/2 15.723