return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CID/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 CID/6-31G
 hartrees
Energy at 0K-1193.814547
Energy at 298.15K-1193.815055
HF Energy-1193.358786
Nuclear repulsion energy340.721097
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 CID/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 1874 1753 0.00      
2 Ag 1216 1138 0.00      
3 Ag 622 582 0.00      
4 Ag 415 389 0.00      
5 Ag 282 264 0.00      
6 Au 368 344 6.72      
7 Au 137 128 0.40      
8 Bg 591 553 0.00      
9 Bu 1231 1151 201.56      
10 Bu 859 804 131.56      
11 Bu 410 383 5.51      
12 Bu 176 165 3.87      

Unscaled Zero Point Vibrational Energy (zpe) 4090.8 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 3825.7 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 CID/6-31G
ABC
0.13697 0.04729 0.03515

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.057 0.659 0.000
C2 0.057 -0.659 0.000
F3 -1.295 1.255 0.000
F4 1.295 -1.255 0.000
Cl5 1.295 1.806 0.000
Cl6 -1.295 -1.806 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.32381.37382.34431.77302.7586
C21.32382.34431.37382.75861.7730
F31.37382.34433.60742.64823.0612
F42.34431.37383.60743.06122.6482
Cl51.77302.75862.64823.06124.4446
Cl62.75861.77303.06122.64824.4446

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 120.679 C1 C2 Cl6 125.317
C2 C1 F3 120.679 C2 C1 Cl5 125.317
F3 C1 Cl5 114.004 F4 C2 Cl6 114.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability