return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCSD=FULL/6-311+G(3df,2p)

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=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-636.819136
Energy at 298.15K-636.821275
HF Energy-635.875224
Nuclear repulsion energy140.926585
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=FULL/6-311+G(3df,2p)
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' 3267 3267 0.83      
2 A' 3260 3260 12.95      
3 A' 1743 1743 29.05      
4 A' 1349 1349 0.24      
5 A' 1263 1263 3.12      
6 A' 1181 1181 183.56      
7 A' 916 916 45.55      
8 A' 463 463 1.87      
9 A' 278 278 6.06      
10 A" 947 947 53.46      
11 A" 848 848 7.45      
12 A" 281 281 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 7897.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7897.9 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=FULL/6-311+G(3df,2p)
ABC
1.83286 0.08291 0.07932

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.475 0.000
C2 1.015 -0.371 0.000
Cl3 -1.623 -0.083 0.000
F4 2.270 0.076 0.000
H5 0.137 1.544 0.000
H6 0.937 -1.447 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32151.71652.30481.07772.1383
C21.32152.65391.33222.10701.0785
Cl31.71652.65393.89642.39682.9010
F42.30481.33223.89642.58952.0238
H51.07772.10702.39682.58953.0962
H62.13831.07852.90102.02383.0962

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 120.565 C1 C2 H6 125.679
C2 C1 Cl3 121.207 C2 C1 H5 122.529
Cl3 C1 H5 116.264 F4 C2 H6 113.755
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability