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All results from a given calculation for CBr2Cl2 (dibromodichloromethane)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-6077.301708
Energy at 298.15K-6077.307424
HF Energy-6077.301708
Nuclear repulsion energy824.829113
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 B3PW91/3-21G
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 693 666 177.70      
2 A1 352 338 0.15      
3 A1 236 226 0.08      
4 A1 153 147 0.09      
5 A2 169 162 0.00      
6 B1 714 686 169.13      
7 B1 226 217 0.29      
8 B2 670 644 177.50      
9 B2 258 248 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 1733.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 1666.6 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 B3PW91/3-21G
ABC
0.04272 0.02933 0.02573

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.352
Cl2 0.000 1.499 1.464
Cl3 0.000 -1.499 1.464
Br4 1.627 0.000 -0.741
Br5 -1.627 0.000 -0.741

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 Br4 Br5
C11.86591.86591.95981.9598
Cl21.86592.99733.12283.1228
Cl31.86592.99733.12283.1228
Br41.95983.12283.12283.2535
Br51.95983.12283.12283.2535

picture of dibromodichloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 106.868 Cl2 C1 Br4 109.404
Cl2 C1 Br5 109.404 Cl3 C1 Br4 109.404
Cl3 C1 Br5 109.404 Br4 C1 Br5 112.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.875      
2 Cl 0.154      
3 Cl 0.154      
4 Br 0.283      
5 Br 0.283      


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 -1.236 1.236
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -64.306 0.000 0.000
y 0.000 -68.590 0.000
z 0.000 0.000 -67.536
Traceless
 xyz
x 3.758 0.000 0.000
y 0.000 -2.669 0.000
z 0.000 0.000 -1.088
Polar
3z2-r2-2.177
x2-y24.285
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.724 0.000 0.000
y 0.000 7.191 0.000
z 0.000 0.000 7.877


<r2> (average value of r2) Å2
<r2> 415.337
(<r2>)1/2 20.380