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

using model chemistry: CCSD/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 CCSD/TZVP
 hartrees
Energy at 0K-1194.639786
Energy at 298.15K-1194.640353
HF Energy-1193.658995
Nuclear repulsion energy349.484074
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/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 1809 1727 0.00      
2 Ag 1236 1180 0.00      
3 Ag 650 621 0.00      
4 Ag 433 413 0.00      
5 Ag 296 282 0.00      
6 Au 361 345 1.20      
7 Au 134 128 0.36      
8 Bg 531 507 0.00      
9 Bu 1260 1202 304.68      
10 Bu 900 859 165.10      
11 Bu 433 414 4.18      
12 Bu 181 173 2.35      

Unscaled Zero Point Vibrational Energy (zpe) 4111.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 3924.0 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/TZVP
ABC
0.14323 0.04985 0.03698

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.063 0.661 0.000
C2 0.063 -0.661 0.000
F3 -1.260 1.235 0.000
F4 1.260 -1.235 0.000
Cl5 1.260 1.757 0.000
Cl6 -1.260 -1.757 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.32791.32762.31231.71842.6980
C21.32792.31231.32762.69801.7184
F31.32762.31233.52922.57392.9922
F42.31231.32763.52922.99222.5739
Cl51.71842.69802.57392.99224.3244
Cl62.69801.71842.99222.57394.3244

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 121.093 C1 C2 Cl6 124.167
C2 C1 F3 121.093 C2 C1 Cl5 124.167
F3 C1 Cl5 114.740 F4 C2 Cl6 114.740
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability