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

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-1194.362743
Energy at 298.15K-1194.363304
HF Energy-1193.504929
Nuclear repulsion energy349.756018
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 MP2/6-31G**
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 1789 1675 0.00      
2 Ag 1246 1167 0.00      
3 Ag 648 606 0.00      
4 Ag 436 408 0.00      
5 Ag 296 277 0.00      
6 Au 369 345 1.75      
7 Au 137 128 0.18      
8 Bg 523 490 0.00      
9 Bu 1264 1183 273.29      
10 Bu 920 862 172.04      
11 Bu 434 406 3.35      
12 Bu 180 169 2.50      

Unscaled Zero Point Vibrational Energy (zpe) 4120.0 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 3858.4 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 MP2/6-31G**
ABC
0.14122 0.05042 0.03715

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.058 0.667 0.000
C2 0.058 -0.667 0.000
F3 -1.265 1.247 0.000
F4 1.265 -1.247 0.000
Cl5 1.265 1.738 0.000
Cl6 -1.265 -1.738 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33821.33962.32631.70172.6906
C21.33822.32631.33962.69061.7017
F31.33962.32633.55272.57652.9853
F42.32631.33963.55272.98532.5765
Cl51.70172.69062.57652.98534.2988
Cl62.69061.70172.98532.57654.2988

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 120.625 C1 C2 Cl6 124.082
C2 C1 F3 120.625 C2 C1 Cl5 124.082
F3 C1 Cl5 115.293 F4 C2 Cl6 115.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability