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

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-1188.565332
Energy at 298.15K-1188.565896
HF Energy-1187.851011
Nuclear repulsion energy346.885262
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/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 Ag 1760 1669 0.00      
2 Ag 1216 1153 0.00      
3 Ag 630 598 0.00      
4 Ag 427 405 0.00      
5 Ag 291 276 0.00      
6 Au 372 353 2.69      
7 Au 143 136 0.25      
8 Bg 596 565 0.00      
9 Bu 1247 1182 162.30      
10 Bu 877 832 159.32      
11 Bu 416 394 1.52      
12 Bu 177 168 3.89      

Unscaled Zero Point Vibrational Energy (zpe) 4076.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 3864.6 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/3-21G*
ABC
0.13487 0.05064 0.03681

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.064 0.664 0.000
C2 0.064 -0.664 0.000
F3 -1.293 1.265 0.000
F4 1.293 -1.265 0.000
Cl5 1.293 1.716 0.000
Cl6 -1.293 -1.716 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33361.36862.35811.71712.6786
C21.33362.35811.36862.67861.7171
F31.36862.35813.61782.62542.9809
F42.35811.36863.61782.98092.6254
Cl51.71712.67862.62542.98094.2975
Cl62.67861.71712.98092.62544.2975

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 121.531 C1 C2 Cl6 122.316
C2 C1 F3 121.531 C2 C1 Cl5 122.316
F3 C1 Cl5 116.153 F4 C2 Cl6 116.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability