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

using model chemistry: MP2=FULL/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=FULL/3-21G*
 hartrees
Energy at 0K-633.179786
Energy at 298.15K-633.181885
HF Energy-632.734014
Nuclear repulsion energy138.359302
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=FULL/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' 3292 3121 6.96      
2 A' 3268 3098 2.64      
3 A' 1701 1612 13.67      
4 A' 1391 1318 0.79      
5 A' 1299 1231 5.17      
6 A' 1151 1091 84.77      
7 A' 864 819 41.08      
8 A' 444 421 1.81      
9 A' 278 263 7.27      
10 A" 980 929 65.53      
11 A" 846 802 21.15      
12 A" 278 263 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 7894.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 7484.0 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=FULL/3-21G*
ABC
1.80024 0.07968 0.07631

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 -0.376 0.000
Cl3 -1.652 -0.075 0.000
F4 2.328 0.055 0.000
H5 0.134 1.558 0.000
H6 0.900 -1.452 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33261.74442.36771.07972.1378
C21.33262.68381.38202.12581.0819
Cl31.74442.68383.98172.41972.8998
F42.36771.38203.98172.65932.0763
H51.07972.12582.41972.65933.1063
H62.13781.08192.89982.07633.1063

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 121.422 C1 C2 H6 124.277
C2 C1 Cl3 120.845 C2 C1 H5 123.244
Cl3 C1 H5 115.912 F4 C2 H6 114.301
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability