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All results from a given calculation for CHFCHCl ((E)-1-chloro-2-fluoroethene)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-636.359938
Energy at 298.15K-636.362016
HF Energy-635.775486
Nuclear repulsion energy139.557014
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 QCISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3276 3120 6.26      
2 A' 3262 3107 5.78      
3 A' 1750 1667 20.02      
4 A' 1352 1288 0.03      
5 A' 1277 1216 5.82      
6 A' 1176 1120 147.13      
7 A' 906 863 46.10      
8 A' 455 433 1.89      
9 A' 276 263 6.88      
10 A" 932 887 55.10      
11 A" 795 757 10.67      
12 A" 276 263 2.33      

Unscaled Zero Point Vibrational Energy (zpe) 7866.6 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 7491.4 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 QCISD/6-31G*
ABC
1.80121 0.08132 0.07781

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.476 0.000
C2 1.023 -0.376 0.000
Cl3 -1.639 -0.087 0.000
F4 2.293 0.087 0.000
H5 0.131 1.552 0.000
H6 0.954 -1.460 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33121.73262.32561.08412.1582
C21.33122.67681.35232.12481.0855
Cl31.73262.67683.93532.41182.9338
F42.32561.35233.93532.61182.0457
H51.08412.12482.41182.61183.1225
H62.15821.08552.93382.04573.1225

picture of (E)-1-chloro-2-fluoroethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 120.137 C1 C2 H6 126.212
C2 C1 Cl3 121.223 C2 C1 H5 122.897
Cl3 C1 H5 115.880 F4 C2 H6 113.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability