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All results from a given calculation for CFClCClF (trans-1,2-dichloro-1,2-difluoroethylene)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-1194.426755
Energy at 298.15K-1194.427227
HF Energy-1193.503881
Nuclear repulsion energy348.148125
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 MP4/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1764 1685        
2 Ag 1227 1172        
3 Ag 635 606        
4 Ag 428 409        
5 Ag 291 278        
6 Au 359 343        
7 Au 134 128        
8 Bg 499 476        
9 Bu 1244 1188        
10 Bu 900 859        
11 Bu 426 407        
12 Bu 177 169        

Unscaled Zero Point Vibrational Energy (zpe) 4041.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 3858.8 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 MP4/6-31G*
ABC
0.14036 0.04986 0.03679

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.058 0.669 0.000
C2 0.058 -0.669 0.000
F3 -1.270 1.250 0.000
F4 1.270 -1.250 0.000
Cl5 1.270 1.749 0.000
Cl6 -1.270 -1.749 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.34261.34402.33351.71172.7046
C21.34262.33351.34402.70461.7117
F31.34402.33353.56372.58782.9994
F42.33351.34403.56372.99942.5878
Cl51.71172.70462.58782.99944.3228
Cl62.70461.71172.99942.58784.3228

picture of trans-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 120.587 C1 C2 Cl6 124.188
C2 C1 F3 120.587 C2 C1 Cl5 124.188
F3 C1 Cl5 115.225 F4 C2 Cl6 115.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability