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

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-1194.236065
Energy at 298.15K-1194.236789
HF Energy-1193.504223
Nuclear repulsion energy353.291793
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 CISD/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 A1 1911 1769 12.32      
2 A1 1277 1182 314.80      
3 A1 603 558 0.38      
4 A1 350 324 3.00      
5 A1 178 164 1.40      
6 A2 597 552 0.00      
7 A2 160 148 0.00      
8 B1 373 346 2.17      
9 B2 1322 1224 25.08      
10 B2 1029 953 191.71      
11 B2 459 425 0.27      
12 B2 438 406 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 4347.9 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 4025.3 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 CISD/6-31G*
ABC
0.10430 0.06251 0.03909

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.660 0.403
C2 0.000 -0.660 0.403
F3 0.000 1.311 1.559
F4 0.000 -1.311 1.559
Cl5 0.000 1.665 -0.967
Cl6 0.000 -1.665 -0.967

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.32041.32682.28531.69892.6988
C21.32042.28531.32682.69881.6989
F31.32682.28532.62202.55073.9036
F42.28531.32682.62203.90362.5507
Cl51.69892.69882.55073.90363.3302
Cl62.69881.69893.90362.55073.3302

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 119.375 C1 C2 Cl6 126.263
C2 C1 F3 119.375 C2 C1 Cl5 126.263
F3 C1 Cl5 114.362 F4 C2 Cl6 114.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability