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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-636.065453
Energy at 298.15K-636.067408
HF Energy-635.692416
Nuclear repulsion energy135.088645
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' 3262 3143 4.82      
2 A' 3242 3124 1.75      
3 A' 1695 1633 9.54      
4 A' 1332 1283 0.15      
5 A' 1244 1199 7.97      
6 A' 1072 1033 85.31      
7 A' 800 771 39.87      
8 A' 411 396 2.12      
9 A' 261 251 9.94      
10 A" 924 891 75.69      
11 A" 801 772 9.60      
12 A" 256 247 5.20      

Unscaled Zero Point Vibrational Energy (zpe) 7649.5 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 7371.0 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/6-31G
ABC
1.73446 0.07589 0.07271

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 0.489 0.000
C2 1.068 -0.321 0.000
Cl3 -1.692 -0.199 0.000
F4 2.360 0.245 0.000
H5 0.044 1.573 0.000
H6 1.077 -1.408 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.34011.82652.37211.08552.1811
C21.34012.76261.41022.15321.0870
Cl31.82652.76264.07592.48103.0215
F42.37211.41024.07592.66942.0920
H51.08552.15322.48102.66943.1550
H62.18111.08703.02152.09203.1550

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 119.176 C1 C2 H6 127.651
C2 C1 Cl3 120.713 C2 C1 H5 124.839
Cl3 C1 H5 114.447 F4 C2 H6 113.173
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability