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

using model chemistry: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-1188.444251
Energy at 298.15K-1188.444945
HF Energy-1187.847055
Nuclear repulsion energy350.498269
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 CID/3-21G*
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 1867 1738 2.54      
2 A1 1226 1141 206.67      
3 A1 575 535 1.21      
4 A1 326 303 2.84      
5 A1 183 170 2.10      
6 A2 641 596 0.00      
7 A2 159 148 0.00      
8 B1 382 355 3.29      
9 B2 1280 1191 10.31      
10 B2 976 908 145.65      
11 B2 456 425 0.07      
12 B2 415 386 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 4243.0 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 3948.2 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 CID/3-21G*
ABC
0.10045 0.06306 0.03874

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.659 0.413
C2 0.000 -0.659 0.413
F3 0.000 1.347 1.587
F4 0.000 -1.347 1.587
Cl5 0.000 1.639 -0.986
Cl6 0.000 -1.639 -0.986

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.31901.36112.32531.70782.6908
C21.31902.32531.36112.69081.7078
F31.36112.32532.69482.58993.9422
F42.32531.36112.69483.94222.5899
Cl51.70782.69082.58993.94223.2781
Cl62.69081.70783.94222.58993.2781

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 120.358 C1 C2 Cl6 125.001
C2 C1 F3 120.358 C2 C1 Cl5 125.001
F3 C1 Cl5 114.641 F4 C2 Cl6 114.641
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability