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: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-637.429426
Energy at 298.15K-637.431515
HF Energy-637.429426
Nuclear repulsion energy140.357094
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 B1B95/cc-pVDZ
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' 3264 3137 7.85      
2 A' 3249 3123 5.74      
3 A' 1753 1685 27.09      
4 A' 1308 1258 0.26      
5 A' 1215 1168 2.55      
6 A' 1182 1136 187.36      
7 A' 896 861 53.90      
8 A' 455 438 1.71      
9 A' 267 257 5.86      
10 A" 934 897 48.47      
11 A" 814 783 16.18      
12 A" 278 267 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 7807.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 7504.6 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 B1B95/cc-pVDZ
ABC
1.81795 0.08224 0.07868

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.477 0.000
C2 1.022 -0.368 0.000
Cl3 -1.630 -0.087 0.000
F4 2.279 0.079 0.000
H5 0.129 1.557 0.000
H6 0.937 -1.454 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32591.72442.31311.08772.1465
C21.32592.66641.33402.12171.0893
Cl31.72442.66643.91192.40732.9086
F42.31311.33403.91192.60832.0371
H51.08772.12172.40732.60833.1175
H62.14651.08932.90862.03713.1175

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 120.829 C1 C2 H6 125.141
C2 C1 Cl3 121.337 C2 C1 H5 122.761
Cl3 C1 H5 115.902 F4 C2 H6 114.029
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.131      
2 C 0.241      
3 Cl -0.056      
4 F -0.168      
5 H 0.076      
6 H 0.039      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.172 -0.160 0.000 0.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.068 -0.830 0.000
y -0.830 -26.025 0.000
z 0.000 0.000 -30.029
Traceless
 xyz
x -4.041 -0.830 0.000
y -0.830 5.024 0.000
z 0.000 0.000 -0.983
Polar
3z2-r2-1.965
x2-y2-6.043
xy-0.830
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.962 -0.326 0.000
y -0.326 4.237 0.000
z 0.000 0.000 2.261


<r2> (average value of r2) Å2
<r2> 124.287
(<r2>)1/2 11.148