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: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-634.241498
Energy at 298.15K-634.243520
HF Energy-634.241498
Nuclear repulsion energy136.815865
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 B3LYP/3-21G
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' 3301 3185 8.69      
2 A' 3241 3128 1.89      
3 A' 1726 1665 17.67      
4 A' 1371 1322 1.34      
5 A' 1231 1188 2.89      
6 A' 1144 1104 100.99      
7 A' 793 765 49.26      
8 A' 422 407 2.40      
9 A' 262 253 6.67      
10 A" 974 940 62.03      
11 A" 843 813 41.46      
12 A" 268 258 2.17      

Unscaled Zero Point Vibrational Energy (zpe) 7788.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 7514.6 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 B3LYP/3-21G
ABC
1.75189 0.07787 0.07455

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.519 0.000
C2 1.056 -0.274 0.000
Cl3 -1.667 -0.220 0.000
F4 2.332 0.226 0.000
H5 0.014 1.595 0.000
H6 0.999 -1.354 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32041.82332.35061.07662.1228
C21.32042.72351.37102.14021.0817
Cl31.82332.72354.02422.47392.8976
F42.35061.37104.02422.69252.0676
H51.07662.14022.47392.69253.1097
H62.12281.08172.89762.06763.1097

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 121.697 C1 C2 H6 123.894
C2 C1 Cl3 119.205 C2 C1 H5 126.161
Cl3 C1 H5 114.634 F4 C2 H6 114.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.462      
2 C 0.161      
3 Cl 0.063      
4 F -0.259      
5 H 0.268      
6 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.606 0.007 0.000 0.606
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.590 -1.418 0.000
y -1.418 -26.308 0.000
z 0.000 0.000 -30.575
Traceless
 xyz
x -5.149 -1.418 0.000
y -1.418 5.774 0.000
z 0.000 0.000 -0.626
Polar
3z2-r2-1.251
x2-y2-7.282
xy-1.418
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.825 0.082 0.000
y 0.082 3.583 0.000
z 0.000 0.000 1.354


<r2> (average value of r2) Å2
<r2> 130.453
(<r2>)1/2 11.422