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

using model chemistry: QCISD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-636.392560
Energy at 298.15K-636.394632
HF Energy-635.787552
Nuclear repulsion energy139.457876
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/6-31+G**
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' 3314 3133 0.80      
2 A' 3307 3126 12.00      
3 A' 1738 1643 19.88      
4 A' 1348 1274 0.03      
5 A' 1283 1213 8.03      
6 A' 1140 1078 173.73      
7 A' 904 855 50.01      
8 A' 451 427 1.83      
9 A' 274 259 7.14      
10 A" 921 871 68.38      
11 A" 793 749 4.58      
12 A" 270 255 1.78      

Unscaled Zero Point Vibrational Energy (zpe) 7871.2 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 7441.4 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/6-31+G**
ABC
1.79995 0.08122 0.07772

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.474 0.000
C2 1.019 -0.383 0.000
Cl3 -1.639 -0.082 0.000
F4 2.296 0.086 0.000
H5 0.136 1.545 0.000
H6 0.959 -1.461 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33171.73132.32851.07892.1601
C21.33172.67501.36072.12041.0795
Cl31.73132.67503.93882.40832.9414
F42.32851.36073.93882.60622.0449
H51.07892.12042.40832.60623.1165
H62.16011.07952.94142.04493.1165

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 119.721 C1 C2 H6 126.926
C2 C1 Cl3 121.137 C2 C1 H5 122.849
Cl3 C1 H5 116.013 F4 C2 H6 113.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability