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

using model chemistry: QCISD(T)=FULL/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(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-1195.073244
Energy at 298.15K-1195.073822
HF Energy-1193.690254
Nuclear repulsion energy351.012102
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(T)=FULL/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 1780 1704 0.00      
2 Ag 1227 1174 0.00      
3 Ag 644 617 0.00      
4 Ag 432 413 0.00      
5 Ag 291 279 0.00      
6 Au 372 356 0.00      
7 Au 135 129 0.00      
8 Bg 551 527 0.00      
9 Bu 1256 1202 0.00      
10 Bu 898 859 0.00      
11 Bu 430 412 0.00      
12 Bu 177 169 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4096.0 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 3919.5 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(T)=FULL/cc-pVTZ
ABC
0.14347 0.05049 0.03735

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.063 0.662 0.000
C2 0.063 -0.662 0.000
F3 -1.256 1.237 0.000
F4 1.256 -1.237 0.000
Cl5 1.256 1.742 0.000
Cl6 -1.256 -1.742 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33081.32422.31251.70512.6843
C21.33082.31251.32422.68431.7051
F31.32422.31253.52582.56322.9788
F42.31251.32423.52582.97882.5632
Cl51.70512.68432.56322.97884.2959
Cl62.68431.70512.97882.56324.2959

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 121.147 C1 C2 Cl6 123.842
C2 C1 F3 121.147 C2 C1 Cl5 123.842
F3 C1 Cl5 115.011 F4 C2 Cl6 115.011
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability