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

using model chemistry: MP4/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP4/TZVP
 hartrees
Energy at 0K-1194.678578
Energy at 298.15K-1194.679037
HF Energy-1193.657269
Nuclear repulsion energy348.023634
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 MP4/TZVP
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 1737 1672        
2 Ag 1192 1148        
3 Ag 632 609        
4 Ag 424 409        
5 Ag 290 279        
6 Au 345 332        
7 Au 129 124        
8 Bg 489 471        
9 Bu 1219 1174        
10 Bu 881 848        
11 Bu 425 409        
12 Bu 176 170        

Unscaled Zero Point Vibrational Energy (zpe) 3969.5 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 3822.2 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 MP4/TZVP
ABC
0.14147 0.04956 0.03670

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.062 0.666 0.000
C2 0.062 -0.666 0.000
F3 -1.267 1.243 0.000
F4 1.267 -1.243 0.000
Cl5 1.267 1.760 0.000
Cl6 -1.267 -1.760 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33841.33572.32681.72132.7087
C21.33842.32681.33572.70871.7213
F31.33572.32683.55032.58603.0031
F42.32681.33573.55033.00312.5860
Cl51.72132.70872.58603.00314.3368
Cl62.70871.72133.00312.58604.3368

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 120.944 C1 C2 Cl6 124.092
C2 C1 F3 120.944 C2 C1 Cl5 124.092
F3 C1 Cl5 114.964 F4 C2 Cl6 114.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability