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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-1196.201828
Energy at 298.15K-1196.202431
HF Energy-1196.201828
Nuclear repulsion energy354.045649
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 mPW1PW91/6-31G(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 1798 1717 18.66      
2 A1 1221 1166 303.53      
3 A1 584 557 1.33      
4 A1 332 317 2.33      
5 A1 168 160 1.21      
6 A2 569 543 0.00      
7 A2 150 143 0.00      
8 B1 360 344 0.54      
9 B2 1266 1209 34.08      
10 B2 982 937 163.76      
11 B2 438 418 0.13      
12 B2 423 404 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 4144.6 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 3956.8 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 mPW1PW91/6-31G(2df,p)
ABC
0.10383 0.06337 0.03935

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.666 0.420
C2 0.000 -0.666 0.420
F3 0.000 1.328 1.556
F4 0.000 -1.328 1.556
Cl5 0.000 1.641 -0.972
Cl6 0.000 -1.641 -0.972

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33191.31552.29501.69942.6944
C21.33192.29501.31552.69441.6994
F31.31552.29502.65532.54803.8998
F42.29501.31552.65533.89982.5480
Cl51.69942.69442.54803.89983.2825
Cl62.69441.69943.89982.54803.2825

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 120.199 C1 C2 Cl6 125.024
C2 C1 F3 120.199 C2 C1 Cl5 125.024
F3 C1 Cl5 114.777 F4 C2 Cl6 114.777
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.134      
2 C 0.134      
3 F -0.066      
4 F -0.066      
5 Cl -0.067      
6 Cl -0.067      


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 -0.449 0.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.485 0.000 0.000
y 0.000 -44.920 0.000
z 0.000 0.000 -44.838
Traceless
 xyz
x 0.394 0.000 0.000
y 0.000 -0.258 0.000
z 0.000 0.000 -0.136
Polar
3z2-r2-0.272
x2-y20.435
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.097 0.000 0.000
y 0.000 9.187 0.000
z 0.000 0.000 7.088


<r2> (average value of r2) Å2
<r2> 234.436
(<r2>)1/2 15.311