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

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-1194.630447
Energy at 298.15K-1194.631052
HF Energy-1193.536277
Nuclear repulsion energy351.943741
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 MP2/6-31G(2df,p)
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 1784 1685 0.00      
2 Ag 1244 1175 0.00      
3 Ag 654 618 0.00      
4 Ag 438 413 0.00      
5 Ag 294 277 0.00      
6 Au 378 357 1.16      
7 Au 140 132 0.06      
8 Bg 558 527 0.00      
9 Bu 1294 1222 256.33      
10 Bu 913 863 168.62      
11 Bu 433 409 2.64      
12 Bu 177 167 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 4152.8 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 3922.4 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 MP2/6-31G(2df,p)
ABC
0.14310 0.05101 0.03760

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.070 0.664 0.000
C2 0.070 -0.664 0.000
F3 -1.257 1.235 0.000
F4 1.257 -1.235 0.000
Cl5 1.257 1.729 0.000
Cl6 -1.257 -1.729 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33561.31702.31661.70162.6714
C21.33562.31661.31702.67141.7016
F31.31702.31663.52402.56232.9637
F42.31661.31703.52402.96372.5623
Cl51.70162.67142.56232.96374.2755
Cl62.67141.70162.96372.56234.2755

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 121.692 C1 C2 Cl6 122.722
C2 C1 F3 121.692 C2 C1 Cl5 122.722
F3 C1 Cl5 115.586 F4 C2 Cl6 115.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability