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All results from a given calculation for CBr2Cl2 (dibromodichloromethane)

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-61.009740
Energy at 298.15K-61.015722
HF Energy-61.009740
Nuclear repulsion energy81.091002
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/CEP-121G
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 781 713 136.63      
2 A1 383 350 0.12      
3 A1 252 230 0.36      
4 A1 163 149 0.04      
5 A2 183 167 0.00      
6 B1 754 688 137.43      
7 B1 241 220 0.67      
8 B2 798 728 133.38      
9 B2 277 252 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 1916.0 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 1748.4 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 HF/CEP-121G
ABC
0.04295 0.02947 0.02581

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.388
Cl2 0.000 1.492 1.458
Cl3 0.000 -1.492 1.458
Br4 1.624 0.000 -0.741
Br5 -1.624 0.000 -0.741

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 Br4 Br5
C11.83591.83591.97841.9784
Cl21.83592.98443.11463.1146
Cl31.83592.98443.11463.1146
Br41.97843.11463.11463.2485
Br51.97843.11463.11463.2485

picture of dibromodichloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 108.737 Cl2 C1 Br4 109.428
Cl2 C1 Br5 109.428 Cl3 C1 Br4 109.428
Cl3 C1 Br5 109.428 Br4 C1 Br5 110.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.804      
2 Cl 0.127      
3 Cl 0.127      
4 Br 0.275      
5 Br 0.275      


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 -0.870 0.870
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.384 0.000 0.000
y 0.000 -61.742 0.000
z 0.000 0.000 -60.699
Traceless
 xyz
x 2.836 0.000 0.000
y 0.000 -2.201 0.000
z 0.000 0.000 -0.636
Polar
3z2-r2-1.272
x2-y23.358
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.400 0.000 0.000
y 0.000 7.281 0.000
z 0.000 0.000 8.252


<r2> (average value of r2) Å2
<r2> 143.802
(<r2>)1/2 11.992