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All results from a given calculation for CFClCClF (trans-1,2-dichloro-1,2-difluoroethylene)

using model chemistry: B2PLYP=FULLultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B2PLYP=FULLultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-1195.797343
Energy at 298.15K 
HF Energy-1195.420147
Nuclear repulsion energy351.415081
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=FULLultrafine/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 Ag 1787 1787 0.00      
2 Ag 1224 1224 0.00      
3 Ag 651 651 0.00      
4 Ag 432 432 0.00      
5 Ag 292 292 0.00      
6 Au 377 377 1.16      
7 Au 138 138 0.04      
8 Bg 565 565 0.00      
9 Bu 1276 1276 264.10      
10 Bu 890 890 177.29      
11 Bu 429 429 2.14      
12 Bu 177 177 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 4118.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4118.2 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=FULLultrafine/6-31G(2df,p)
ABC
0.14342 0.05069 0.03745

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.071 0.662 0.000
C2 0.071 -0.662 0.000
F3 -1.257 1.234 0.000
F4 1.257 -1.234 0.000
Cl5 1.257 1.738 0.000
Cl6 -1.257 -1.738 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33111.31672.31431.70862.6765
C21.33112.31431.31672.67651.7086
F31.31672.31433.52252.56312.9718
F42.31431.31673.52252.97182.5631
Cl51.70862.67652.56312.97184.2889
Cl62.67651.70862.97182.56314.2889

picture of trans-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 121.863 C1 C2 Cl6 122.932
C2 C1 F3 121.863 C2 C1 Cl5 122.932
F3 C1 Cl5 115.205 F4 C2 Cl6 115.205
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability