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

using model chemistry: CCD/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 CCD/3-21G
 hartrees
Energy at 0K-1188.153753
Energy at 298.15K-1188.154135
HF Energy-1187.621833
Nuclear repulsion energy339.013393
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 CCD/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 1828 1777 0.00      
2 Ag 1194 1161 0.00      
3 Ag 608 591 0.00      
4 Ag 386 375 0.00      
5 Ag 267 259 0.00      
6 Au 364 354 4.75      
7 Au 135 131 0.02      
8 Bg 585 569 0.00      
9 Bu 1268 1233 159.87      
10 Bu 785 763 121.43      
11 Bu 382 372 2.76      
12 Bu 165 160 4.07      

Unscaled Zero Point Vibrational Energy (zpe) 3982.8 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 3872.4 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 CCD/3-21G
ABC
0.13391 0.04726 0.03493

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.092 0.654 0.000
C2 0.092 -0.654 0.000
F3 -1.319 1.239 0.000
F4 1.319 -1.239 0.000
Cl5 1.319 1.798 0.000
Cl6 -1.319 -1.798 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.32181.35872.36121.81602.7422
C21.32182.36121.35872.74221.8160
F31.35872.36123.61872.69583.0371
F42.36121.35873.61873.03712.6958
Cl51.81602.74222.69583.03714.4596
Cl62.74221.81603.03712.69584.4596

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 123.489 C1 C2 Cl6 121.028
C2 C1 F3 123.489 C2 C1 Cl5 121.028
F3 C1 Cl5 115.483 F4 C2 Cl6 115.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability