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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-1188.170912
Energy at 298.15K-1188.171181
HF Energy-1187.612212
Nuclear repulsion energy338.704146
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 MP4/3-21G
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 1737 1685        
2 A1 1117 1084        
3 A1 476 461        
4 A1 293 285        
5 A1 164 159        
6 A2 547 530        
7 A2 140 136        
8 B1 339 328        
9 B2 1200 1164        
10 B2 846 820        
11 B2 393 381        
12 B2 360 349        

Unscaled Zero Point Vibrational Energy (zpe) 3806.4 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 3691.5 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 MP4/3-21G
ABC
0.09196 0.05991 0.03628

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.667 0.479
C2 0.000 -0.667 0.479
F3 0.000 1.396 1.642
F4 0.000 -1.396 1.642
Cl5 0.000 1.677 -1.038
Cl6 0.000 -1.677 -1.038

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33481.37152.36791.82292.7929
C21.33482.36791.37152.79291.8229
F31.37152.36792.79122.69474.0772
F42.36791.37152.79124.07722.6947
Cl51.82292.79292.69474.07723.3541
Cl62.79291.82294.07722.69473.3541

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 122.069 C1 C2 Cl6 123.633
C2 C1 F3 122.069 C2 C1 Cl5 123.633
F3 C1 Cl5 114.298 F4 C2 Cl6 114.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability