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

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-1180.163209
Energy at 298.15K-1180.163308
HF Energy-1179.979384
Nuclear repulsion energy339.474883
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 MP2=FULL/STO-3G
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 1769 1572 9.35      
2 A1 1282 1140 104.00      
3 A1 582 517 5.39      
4 A1 298 265 0.46      
5 A1 156 139 1.61      
6 A2 474 421 0.00      
7 A2 145 129 0.00      
8 B1 344 306 4.88      
9 B2 1399 1243 3.75      
10 B2 990 880 95.12      
11 B2 423 376 0.00      
12 B2 396 352 4.35      

Unscaled Zero Point Vibrational Energy (zpe) 4128.3 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 3669.7 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 MP2=FULL/STO-3G
ABC
0.09237 0.06031 0.03648

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.688 0.483
C2 0.000 -0.688 0.483
F3 0.000 1.415 1.637
F4 0.000 -1.415 1.637
Cl5 0.000 1.657 -1.037
Cl6 0.000 -1.657 -1.037

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.37601.36402.39901.80212.7943
C21.37602.39901.36402.79431.8021
F31.36402.39902.83052.68424.0726
F42.39901.36402.83054.07262.6842
Cl51.80212.79432.68424.07263.3144
Cl62.79431.80214.07262.68423.3144

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 122.221 C1 C2 Cl6 122.534
C2 C1 F3 122.221 C2 C1 Cl5 122.534
F3 C1 Cl5 115.245 F4 C2 Cl6 115.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability