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

using model chemistry: MP2/CEP-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/CEP-31G
 hartrees
Energy at 0K-50.851282
Energy at 298.15K-50.853155
HF Energy-50.557887
Nuclear repulsion energy54.123288
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/CEP-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' 3273 3162 1.31      
2 A' 3260 3151 13.65      
3 A' 1626 1572 11.28      
4 A' 1293 1250 1.48      
5 A' 1226 1185 5.09      
6 A' 1009 975 113.23      
7 A' 815 788 42.28      
8 A' 405 391 2.41      
9 A' 251 242 10.70      
10 A" 895 865 113.11      
11 A" 713 689 1.76      
12 A" 249 241 4.01      

Unscaled Zero Point Vibrational Energy (zpe) 7507.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 7254.5 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/CEP-31G
ABC
1.65519 0.07454 0.07133

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.499 0.000
C2 1.068 -0.374 0.000
Cl3 -1.710 -0.143 0.000
F4 2.390 0.173 0.000
H5 0.090 1.591 0.000
H6 1.063 -1.468 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.37921.82672.41231.09592.2355
C21.37922.78811.43072.19461.0941
Cl31.82672.78814.11272.49963.0737
F42.41231.43074.11272.70192.1105
H51.09592.19462.49962.70193.2098
H62.23551.09413.07372.11053.2098

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 118.286 C1 C2 H6 128.977
C2 C1 Cl3 120.195 C2 C1 H5 124.521
Cl3 C1 H5 115.284 F4 C2 H6 112.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability