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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-636.343540
Energy at 298.15K-636.345636
HF Energy-635.779545
Nuclear repulsion energy139.943073
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' 3332 3120 7.71      
2 A' 3318 3107 5.75      
3 A' 1740 1630 20.10      
4 A' 1358 1272 0.02      
5 A' 1279 1198 7.90      
6 A' 1182 1107 147.37      
7 A' 918 859 46.03      
8 A' 457 428 1.85      
9 A' 275 257 6.42      
10 A" 944 884 53.62      
11 A" 790 740 10.30      
12 A" 278 261 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 7935.4 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 7431.5 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 MP2/6-31G**
ABC
1.81378 0.08172 0.07820

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 0.475 0.000
C2 1.017 -0.385 0.000
Cl3 -1.634 -0.071 0.000
F4 2.289 0.065 0.000
H5 0.146 1.543 0.000
H6 0.932 -1.461 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33181.72322.32581.07792.1491
C21.33182.66951.35002.11581.0797
Cl31.72322.66953.92602.40322.9184
F42.32581.35003.92602.60352.0431
H51.07792.11582.40322.60353.1057
H62.14911.07972.91842.04313.1057

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 120.277 C1 C2 H6 125.720
C2 C1 Cl3 121.278 C2 C1 H5 122.453
Cl3 C1 H5 116.269 F4 C2 H6 114.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability