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

using model chemistry: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-636.375906
Energy at 298.15K-636.377996
HF Energy-635.779549
Nuclear repulsion energy139.675875
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/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' 3317 3123 6.28      
2 A' 3304 3110 6.43      
3 A' 1758 1655 20.03      
4 A' 1361 1281 0.05      
5 A' 1281 1206 8.65      
6 A' 1179 1110 146.70      
7 A' 908 855 45.19      
8 A' 455 428 1.85      
9 A' 275 259 6.74      
10 A" 941 886 50.68      
11 A" 796 749 9.91      
12 A" 276 260 2.28      

Unscaled Zero Point Vibrational Energy (zpe) 7925.0 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 7460.6 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/6-31G**
ABC
1.81183 0.08138 0.07788

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.475 0.000
C2 1.023 -0.377 0.000
Cl3 -1.638 -0.086 0.000
F4 2.292 0.086 0.000
H5 0.134 1.545 0.000
H6 0.950 -1.454 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33091.73142.32491.07822.1507
C21.33092.67651.35122.11741.0799
Cl31.73142.67653.93392.40782.9280
F42.32491.35123.93392.60542.0426
H51.07822.11742.40782.60543.1085
H62.15071.07992.92802.04263.1085

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 120.180 C1 C2 H6 125.961
C2 C1 Cl3 121.311 C2 C1 H5 122.682
Cl3 C1 H5 116.007 F4 C2 H6 113.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability