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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-636.327874
Energy at 298.15K-636.329961
HF Energy-635.775570
Nuclear repulsion energy139.841674
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 MP2/6-31G*
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' 3306 3118 7.85      
2 A' 3292 3105 5.07      
3 A' 1735 1636 20.17      
4 A' 1356 1279 0.01      
5 A' 1281 1208 5.70      
6 A' 1179 1111 147.88      
7 A' 916 864 47.28      
8 A' 457 431 1.89      
9 A' 276 260 6.54      
10 A" 937 884 58.09      
11 A" 791 746 11.12      
12 A" 279 263 1.96      

Unscaled Zero Point Vibrational Energy (zpe) 7902.9 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 7452.4 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 MP2/6-31G*
ABC
1.80452 0.08168 0.07814

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.476 0.000
C2 1.017 -0.384 0.000
Cl3 -1.635 -0.073 0.000
F4 2.290 0.067 0.000
H5 0.142 1.549 0.000
H6 0.936 -1.465 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33211.72452.32631.08222.1553
C21.33212.66961.35112.12211.0837
Cl31.72452.66963.92732.40592.9234
F42.32631.35113.92732.60962.0449
H51.08222.12212.40592.60963.1170
H62.15531.08372.92342.04493.1170

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 120.223 C1 C2 H6 125.980
C2 C1 Cl3 121.173 C2 C1 H5 122.706
Cl3 C1 H5 116.121 F4 C2 H6 113.797
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability