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All results from a given calculation for CBr2Cl2 (dibromodichloromethane)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-6105.479702
Energy at 298.15K-6105.472467
HF Energy-6106.214665
Nuclear repulsion energy841.803912
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 B3LYP/6-31G(2df,p)
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 716 691 133.22      
2 A1 379 366 0.00      
3 A1 243 235 0.11      
4 A1 157 151 0.04      
5 A2 174 167 0.00      
6 B1 690 666 125.19      
7 B1 232 224 0.06      
8 B2 727 701 133.89      
9 B2 265 256 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 1791.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 1728.6 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 B3LYP/6-31G(2df,p)
ABC
0.04505 0.03114 0.02722

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.389
Cl2 0.000 1.456 1.423
Cl3 0.000 -1.456 1.423
Br4 1.578 0.000 -0.725
Br5 -1.578 0.000 -0.725

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 Br4 Br5
C11.78561.78561.93191.9319
Cl21.78562.91123.03723.0372
Cl31.78562.91123.03723.0372
Br41.93193.03723.03723.1568
Br51.93193.03723.03723.1568

picture of dibromodichloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.742 Cl2 C1 Br4 109.469
Cl2 C1 Br5 109.469 Cl3 C1 Br4 109.469
Cl3 C1 Br5 109.469 Br4 C1 Br5 109.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.188      
2 Cl -0.033      
3 Cl -0.033      
4 Br 0.127      
5 Br 0.127      


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 -0.277 0.277
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 393.750
(<r2>)1/2 19.843