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

using model chemistry: MP2/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-88.903972
Energy at 298.15K-88.904404
HF Energy-88.017650
Nuclear repulsion energy119.520648
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/CEP-121G*
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 1732 1650 0.00      
2 Ag 1213 1156 0.00      
3 Ag 635 605 0.00      
4 Ag 427 407 0.00      
5 Ag 288 274 0.00      
6 Au 349 333 0.61      
7 Au 131 125 0.37      
8 Bg 465 443 0.00      
9 Bu 1229 1171 317.13      
10 Bu 910 867 181.22      
11 Bu 421 401 4.32      
12 Bu 173 165 2.28      

Unscaled Zero Point Vibrational Energy (zpe) 3986.3 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 3798.2 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/CEP-121G*
ABC
0.13967 0.04943 0.03651

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.058 0.673 0.000
C2 0.058 -0.673 0.000
F3 -1.271 1.258 0.000
F4 1.271 -1.258 0.000
Cl5 1.271 1.759 0.000
Cl6 -1.271 -1.759 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.35071.34692.34401.71602.7172
C21.35072.34401.34692.71721.7160
F31.34692.34403.57672.59083.0166
F42.34401.34693.57673.01662.5908
Cl51.71602.71722.59083.01664.3396
Cl62.71721.71603.01662.59084.3396

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 120.674 C1 C2 Cl6 124.327
C2 C1 F3 120.674 C2 C1 Cl5 124.327
F3 C1 Cl5 114.999 F4 C2 Cl6 114.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability