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

using model chemistry: MP2/6-31+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 MP2/6-31+G**
 hartrees
Energy at 0K-636.360758
Energy at 298.15K-636.362832
HF Energy-635.787485
Nuclear repulsion energy139.700839
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 MP2/6-31+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' 3326 3129 0.79      
2 A' 3320 3123 13.45      
3 A' 1717 1615 19.47      
4 A' 1344 1264 0.10      
5 A' 1280 1204 6.93      
6 A' 1138 1070 176.30      
7 A' 914 859 51.28      
8 A' 454 427 1.86      
9 A' 274 258 6.78      
10 A" 922 867 74.07      
11 A" 787 740 4.69      
12 A" 272 255 1.38      

Unscaled Zero Point Vibrational Energy (zpe) 7873.2 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 7405.5 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 MP2/6-31+G**
ABC
1.80057 0.08155 0.07802

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.475 0.000
C2 1.012 -0.393 0.000
Cl3 -1.636 -0.067 0.000
F4 2.294 0.063 0.000
H5 0.150 1.543 0.000
H6 0.939 -1.470 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33311.72292.33031.07872.1595
C21.33312.66781.36052.11911.0794
Cl31.72292.66783.93162.40402.9325
F42.33031.36053.93162.60462.0460
H51.07872.11912.40402.60463.1144
H62.15951.07942.93252.04603.1144

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 119.793 C1 C2 H6 126.732
C2 C1 Cl3 121.088 C2 C1 H5 122.608
Cl3 C1 H5 116.304 F4 C2 H6 113.475
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability