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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-633.162770
Energy at 298.15K-633.164867
HF Energy-632.733979
Nuclear repulsion energy138.337068
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 MP2/3-21G*
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' 3291 3131 6.94      
2 A' 3267 3108 2.64      
3 A' 1700 1617 13.62      
4 A' 1390 1322 0.79      
5 A' 1299 1236 5.23      
6 A' 1150 1094 84.74      
7 A' 864 822 41.21      
8 A' 444 422 1.81      
9 A' 278 264 7.29      
10 A" 979 932 65.55      
11 A" 845 804 21.13      
12 A" 278 264 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 7892.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 7508.1 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 MP2/3-21G*
ABC
1.80009 0.07965 0.07628

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.487 0.000
C2 1.015 -0.377 0.000
Cl3 -1.652 -0.075 0.000
F4 2.328 0.056 0.000
H5 0.134 1.558 0.000
H6 0.901 -1.453 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33291.74472.36791.07982.1383
C21.33292.68451.38222.12611.0820
Cl31.74472.68453.98242.41972.9010
F42.36791.38223.98242.65962.0766
H51.07982.12612.41972.65963.1068
H62.13831.08202.90102.07663.1068

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 121.408 C1 C2 H6 124.290
C2 C1 Cl3 120.866 C2 C1 H5 123.246
Cl3 C1 H5 115.888 F4 C2 H6 114.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability