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

using model chemistry: CCSD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-1194.540687
Energy at 298.15K-1194.541221
HF Energy-1193.563431
Nuclear repulsion energy347.746437
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 CCSD(T)=FULL/cc-pVDZ
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 1775 1709        
2 Ag 1228 1183        
3 Ag 636 613        
4 Ag 427 412        
5 Ag 290 279        
6 Au 369 356        
7 Au 135 130        
8 Bg 529 510        
9 Bu 1248 1202        
10 Bu 889 856        
11 Bu 425 409        
12 Bu 176 169        

Unscaled Zero Point Vibrational Energy (zpe) 4062.9 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 3913.3 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 CCSD(T)=FULL/cc-pVDZ
ABC
0.14041 0.04963 0.03667

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.067 0.670 0.000
C2 0.067 -0.670 0.000
F3 -1.269 1.250 0.000
F4 1.269 -1.250 0.000
Cl5 1.269 1.756 0.000
Cl6 -1.269 -1.756 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.34751.33442.33961.72142.7077
C21.34752.33961.33442.70771.7214
F31.33442.33963.56272.58773.0062
F42.33961.33443.56273.00622.5877
Cl51.72142.70772.58773.00624.3329
Cl62.70771.72143.00622.58774.3329

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 121.467 C1 C2 Cl6 123.382
C2 C1 F3 121.467 C2 C1 Cl5 123.382
F3 C1 Cl5 115.151 F4 C2 Cl6 115.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability