return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-1194.380840
Energy at 298.15K-1194.381416
HF Energy-1193.502906
Nuclear repulsion energy351.184045
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 MP3/6-31G*
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 1832 1719 11.79      
2 A1 1238 1162 293.12      
3 A1 583 547 0.39      
4 A1 339 318 2.80      
5 A1 172 161 1.31      
6 A2 534 501 0.00      
7 A2 152 143 0.00      
8 B1 349 328 1.79      
9 B2 1286 1207 16.99      
10 B2 996 935 170.96      
11 B2 444 417 0.21      
12 B2 426 400 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 4175.0 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 3918.7 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 MP3/6-31G*
ABC
0.10284 0.06189 0.03864

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.666 0.403
C2 0.000 -0.666 0.403
F3 0.000 1.318 1.570
F4 0.000 -1.318 1.570
Cl5 0.000 1.673 -0.974
Cl6 0.000 -1.673 -0.974

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33291.33662.30241.70562.7144
C21.33292.30241.33662.71441.7056
F31.33662.30242.63682.56873.9267
F42.30241.33662.63683.92672.5687
Cl51.70562.71442.56873.92673.3452
Cl62.71441.70563.92672.56873.3452

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 119.193 C1 C2 Cl6 126.150
C2 C1 F3 119.193 C2 C1 Cl5 126.150
F3 C1 Cl5 114.658 F4 C2 Cl6 114.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability