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

using model chemistry: QCISD(T)/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-1194.986104
Energy at 298.15K-1194.986626
HF Energy-1193.692651
Nuclear repulsion energy351.629031
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 QCISD(T)/aug-cc-pVTZ
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 1750 1692        
2 A1 1183 1144        
3 A1 567 548        
4 A1 328 317        
5 A1 166 161        
6 A2 532 515        
7 A2 147 142        
8 B1 335 324        
9 B2 1218 1177        
10 B2 966 934        
11 B2 431 417        
12 B2 415 401        

Unscaled Zero Point Vibrational Energy (zpe) 4018.4 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 3885.0 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 QCISD(T)/aug-cc-pVTZ
ABC
0.10242 0.06253 0.03882

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 0.416
C2 0.000 -0.669 0.416
F3 0.000 1.334 1.570
F4 0.000 -1.334 1.570
Cl5 0.000 1.654 -0.978
Cl6 0.000 -1.654 -0.978

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33781.33202.31181.70622.7083
C21.33782.31181.33202.70831.7062
F31.33202.31182.66872.56723.9263
F42.31181.33202.66873.92632.5672
Cl51.70622.70832.56723.92633.3070
Cl62.70831.70623.92632.56723.3070

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 119.972 C1 C2 Cl6 125.247
C2 C1 F3 119.972 C2 C1 Cl5 125.247
F3 C1 Cl5 114.780 F4 C2 Cl6 114.780
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability