return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-636.509166
Energy at 298.15K-636.511266
HF Energy-635.868770
Nuclear repulsion energy139.976869
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/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 A' 3288 3117 4.24      
2 A' 3280 3109 7.13      
3 A' 1751 1660 21.39      
4 A' 1366 1295 0.13      
5 A' 1282 1216 5.46      
6 A' 1175 1114 172.71      
7 A' 903 856 46.65      
8 A' 457 433 1.95      
9 A' 278 263 7.28      
10 A" 933 885 59.02      
11 A" 791 750 6.32      
12 A" 272 258 1.82      

Unscaled Zero Point Vibrational Energy (zpe) 7888.0 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 7477.9 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/TZVP
ABC
1.81683 0.08175 0.07823

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.478 0.000
C2 1.027 -0.354 0.000
Cl3 -1.635 -0.114 0.000
F4 2.282 0.120 0.000
H5 0.112 1.550 0.000
H6 0.972 -1.432 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32231.73862.31011.07812.1433
C21.32232.67271.34152.11321.0795
Cl31.73862.67273.92382.41292.9205
F42.31011.34153.92382.59912.0318
H51.07812.11322.41292.59913.1041
H62.14331.07952.92052.03183.1041

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 120.276 C1 C2 H6 126.051
C2 C1 Cl3 121.062 C2 C1 H5 123.047
Cl3 C1 H5 115.891 F4 C2 H6 113.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability