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

using model chemistry: CCSD(T)/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31G(2df,p)
 hartrees
Energy at 0K-636.557996
Energy at 298.15K-636.560070
HF Energy-635.795058
Nuclear repulsion energy140.096048
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 CCSD(T)/6-31G(2df,p)
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' 3265 3265        
2 A' 3250 3250        
3 A' 1708 1708        
4 A' 1340 1340        
5 A' 1236 1236        
6 A' 1184 1184        
7 A' 890 890        
8 A' 453 453        
9 A' 268 268        
10 A" 935 935        
11 A" 796 796        
12 A" 274 274        

Unscaled Zero Point Vibrational Energy (zpe) 7798.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7798.7 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 CCSD(T)/6-31G(2df,p)
ABC
1.79300 0.08203 0.07844

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.490 0.000
C2 1.024 -0.363 0.000
Cl3 -1.631 -0.093 0.000
F4 2.282 0.078 0.000
H5 0.120 1.565 0.000
H6 0.936 -1.443 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33261.73252.31881.08142.1477
C21.33262.66881.33342.12911.0835
Cl31.73252.66883.91712.41182.9004
F42.31881.33343.91712.62352.0314
H51.08142.12912.41182.62353.1164
H62.14771.08352.90042.03143.1164

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 120.858 C1 C2 H6 125.152
C2 C1 Cl3 120.521 C2 C1 H5 123.426
Cl3 C1 H5 116.053 F4 C2 H6 113.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability