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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-1188.155015
Energy at 298.15K-1188.155397
HF Energy-1187.621458
Nuclear repulsion energy339.000704
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 1797 1716 0.00      
2 Ag 1179 1125 0.00      
3 Ag 607 580 0.00      
4 Ag 388 370 0.00      
5 Ag 268 256 0.00      
6 Au 365 349 3.19      
7 Au 136 130 0.02      
8 Bg 576 550 0.00      
9 Bu 1261 1204 182.21      
10 Bu 786 750 142.17      
11 Bu 384 367 1.43      
12 Bu 165 158 4.13      

Unscaled Zero Point Vibrational Energy (zpe) 3955.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 3776.4 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
0.13316 0.04742 0.03497

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 -0.094 0.656 0.000
C2 0.094 -0.656 0.000
F3 -1.321 1.242 0.000
F4 1.321 -1.242 0.000
Cl5 1.321 1.792 0.000
Cl6 -1.321 -1.792 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.32491.35972.36741.81512.7377
C21.32492.36741.35972.73771.8151
F31.35972.36743.62652.69913.0336
F42.36741.35973.62653.03362.6991
Cl51.81512.73772.69913.03364.4524
Cl62.73771.81513.03362.69914.4524

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 123.725 C1 C2 Cl6 120.559
C2 C1 F3 123.725 C2 C1 Cl5 120.559
F3 C1 Cl5 115.716 F4 C2 Cl6 115.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability