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

using model chemistry: CID/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 CID/3-21G
 hartrees
Energy at 0K-1188.084700
Energy at 298.15K-1188.085236
HF Energy-1187.624229
Nuclear repulsion energy341.972240
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 CID/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 1908 1777 0.00      
2 Ag 1236 1152 0.00      
3 Ag 633 590 0.00      
4 Ag 405 378 0.00      
5 Ag 278 259 0.00      
6 Au 384 358 5.31      
7 Au 142 133 0.05      
8 Bg 633 589 0.00      
9 Bu 1307 1218 189.28      
10 Bu 823 767 139.26      
11 Bu 398 370 2.69      
12 Bu 172 160 4.44      

Unscaled Zero Point Vibrational Energy (zpe) 4159.3 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 3874.8 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 CID/3-21G
ABC
0.13627 0.04808 0.03554

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/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 -1.306 1.232 0.000
F4 1.306 -1.232 0.000
Cl5 1.306 1.783 0.000
Cl6 -1.306 -1.783 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.30981.34992.34111.79702.7198
C21.30982.34111.34992.71981.7970
F31.34992.34113.59042.66883.0153
F42.34111.34993.59043.01532.6688
Cl51.79702.71982.66883.01534.4201
Cl62.71981.79703.01532.66884.4201

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 123.331 C1 C2 Cl6 121.402
C2 C1 F3 123.331 C2 C1 Cl5 121.402
F3 C1 Cl5 115.267 F4 C2 Cl6 115.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability