return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CFClCFCl (cis-1,2-dichloro-1,2-difluoroethylene)

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-1195.830285
Energy at 298.15K-1195.830849
HF Energy-1195.517160
Nuclear repulsion energy351.257634
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 B2PLYP/6-311G**
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 1761 1761 16.36      
2 A1 1174 1174 349.46      
3 A1 567 567 0.94      
4 A1 335 335 2.88      
5 A1 173 173 1.38      
6 A2 546 546 0.00      
7 A2 147 147 0.00      
8 B1 346 346 0.38      
9 B2 1214 1214 25.75      
10 B2 964 964 193.06      
11 B2 434 434 0.14      
12 B2 421 421 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 4041.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4041.4 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 B2PLYP/6-311G**
ABC
0.10263 0.06211 0.03869

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.667 0.414
C2 0.000 -0.667 0.414
F3 0.000 1.330 1.568
F4 0.000 -1.330 1.568
Cl5 0.000 1.663 -0.977
Cl6 0.000 -1.663 -0.977

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33431.33092.30671.71082.7140
C21.33432.30671.33092.71401.7108
F31.33092.30672.66032.56663.9291
F42.30671.33092.66033.92912.5666
Cl51.71082.71402.56663.92913.3268
Cl62.71401.71083.92912.56663.3268

picture of cis-1,2-dichloro-1,2-difluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 119.879 C1 C2 Cl6 125.614
C2 C1 F3 119.879 C2 C1 Cl5 125.614
F3 C1 Cl5 114.507 F4 C2 Cl6 114.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.166      
2 C 0.166      
3 F -0.177      
4 F -0.177      
5 Cl 0.011      
6 Cl 0.011      


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 -0.879 0.879
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.969 0.000 0.000
y 0.000 -46.773 0.000
z 0.000 0.000 -46.642
Traceless
 xyz
x 0.738 0.000 0.000
y 0.000 -0.467 0.000
z 0.000 0.000 -0.271
Polar
3z2-r2-0.541
x2-y20.804
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.912 0.000 0.000
y 0.000 8.361 0.000
z 0.000 0.000 6.707


<r2> (average value of r2) Å2
<r2> 239.035
(<r2>)1/2 15.461