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: B2PLYP=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-637.202650
Energy at 298.15K-637.204724
HF Energy-636.972740
Nuclear repulsion energy139.863397
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 B2PLYP=FULL/6-311G*
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' 3260 3260 7.30      
2 A' 3250 3250 7.43      
3 A' 1713 1713 25.19      
4 A' 1337 1337 0.33      
5 A' 1262 1262 3.63      
6 A' 1153 1153 178.23      
7 A' 884 884 61.55      
8 A' 452 452 1.98      
9 A' 274 274 6.15      
10 A" 930 930 68.71      
11 A" 798 798 13.48      
12 A" 273 273 1.32      

Unscaled Zero Point Vibrational Energy (zpe) 7792.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7792.8 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 B2PLYP=FULL/6-311G*
ABC
1.82589 0.08148 0.07800

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.475 0.000
C2 1.028 -0.362 0.000
Cl3 -1.637 -0.099 0.000
F4 2.288 0.100 0.000
H5 0.116 1.549 0.000
H6 0.965 -1.442 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32581.73512.31821.07972.1461
C21.32582.67831.34172.11731.0816
Cl31.73512.67833.93002.40592.9283
F42.31821.34173.93002.61052.0314
H51.07972.11732.40592.61053.1086
H62.14611.08162.92832.03143.1086

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 120.693 C1 C2 H6 125.815
C2 C1 Cl3 121.517 C2 C1 H5 122.995
Cl3 C1 H5 115.488 F4 C2 H6 113.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability