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All results from a given calculation for CHFCHClz ((Z)-1-Chloro-2-fluoroethene)

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-633.196216
Energy at 298.15K-633.198480
HF Energy-632.735262
Nuclear repulsion energy143.513651
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 QCISD/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' 3248 3122 7.62      
2 A' 3209 3084 2.24      
3 A' 1718 1651 25.44      
4 A' 1424 1369 12.22      
5 A' 1303 1252 7.00      
6 A' 1079 1037 51.44      
7 A' 798 767 10.06      
8 A' 651 625 21.42      
9 A' 196 189 1.79      
10 A" 946 909 0.34      
11 A" 785 754 43.00      
12 A" 460 442 8.87      

Unscaled Zero Point Vibrational Energy (zpe) 7907.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 7600.0 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 QCISD/3-21G*
ABC
0.51835 0.12307 0.09946

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.899 0.000
C2 1.251 0.440 0.000
Cl3 -1.379 -0.173 0.000
F4 1.560 -0.905 0.000
H5 -0.220 1.959 0.000
H6 2.117 1.095 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33241.74662.38461.08292.1258
C21.33242.70041.38002.11441.0853
Cl31.74662.70043.02812.42713.7184
F42.38461.38003.02813.37192.0757
H51.08292.11442.42713.37192.4914
H62.12581.08533.71842.07572.4914

picture of (Z)-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 123.060 C1 C2 H6 122.773
C2 C1 Cl3 121.992 C2 C1 H5 121.850
Cl3 C1 H5 116.158 F4 C2 H6 114.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability