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

using model chemistry: CISD/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 CISD/3-21G
 hartrees
Energy at 0K-1188.088663
Energy at 298.15K-1188.089191
HF Energy-1187.624108
Nuclear repulsion energy341.789219
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 CISD/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 1903 1791 0.00      
2 Ag 1232 1159 0.00      
3 Ag 632 595 0.00      
4 Ag 404 381 0.00      
5 Ag 277 261 0.00      
6 Au 384 361 5.14      
7 Au 142 134 0.04      
8 Bg 630 593 0.00      
9 Bu 1303 1226 190.08      
10 Bu 821 772 140.82      
11 Bu 397 373 2.56      
12 Bu 171 161 4.47      

Unscaled Zero Point Vibrational Energy (zpe) 4146.9 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 3903.5 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 CISD/3-21G
ABC
0.13606 0.04804 0.03550

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.088 0.649 0.000
C2 0.088 -0.649 0.000
F3 -1.307 1.233 0.000
F4 1.307 -1.233 0.000
Cl5 1.307 1.784 0.000
Cl6 -1.307 -1.784 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.31041.35072.34271.79812.7207
C21.31042.34271.35072.72071.7981
F31.35072.34273.59292.67073.0164
F42.34271.35073.59293.01642.6707
Cl51.79812.72072.67073.01644.4219
Cl62.72071.79813.01642.67074.4219

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 123.363 C1 C2 Cl6 121.352
C2 C1 F3 123.363 C2 C1 Cl5 121.352
F3 C1 Cl5 115.285 F4 C2 Cl6 115.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability