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

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-1194.902743
Energy at 298.15K-1194.903359
HF Energy-1193.690431
Nuclear repulsion energy350.883528
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 QCISD/cc-pVTZ
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 1812 1731 0.00      
2 Ag 1245 1190 0.00      
3 Ag 652 623 0.00      
4 Ag 435 415 0.00      
5 Ag 293 280 0.00      
6 Au 378 361 0.93      
7 Au 137 131 0.21      
8 Bg 563 538 0.00      
9 Bu 1273 1216 281.56      
10 Bu 905 864 161.84      
11 Bu 432 413 3.36      
12 Bu 179 171 2.06      

Unscaled Zero Point Vibrational Energy (zpe) 4151.5 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 3966.7 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 QCISD/cc-pVTZ
ABC
0.14367 0.05038 0.03730

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.064 0.661 0.000
C2 0.064 -0.661 0.000
F3 -1.256 1.236 0.000
F4 1.256 -1.236 0.000
Cl5 1.256 1.745 0.000
Cl6 -1.256 -1.745 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.32901.32292.31161.70802.6856
C21.32902.31161.32292.68561.7080
F31.32292.31163.52432.56262.9815
F42.31161.32293.52432.98152.5626
Cl51.70802.68562.56262.98154.3003
Cl62.68561.70802.98152.56264.3003

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 121.297 C1 C2 Cl6 123.846
C2 C1 F3 121.297 C2 C1 Cl5 123.846
F3 C1 Cl5 114.857 F4 C2 Cl6 114.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability