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 CH2CHF (Ethene, fluoro-)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-177.628341
Energy at 298.15K 
HF Energy-177.628341
Nuclear repulsion energy67.255754
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 PBEPBEultrafine/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' 3216 3183 1.95 43.15 0.72 0.83
2 A' 3123 3091 4.12 143.08 0.16 0.27
3 A' 3105 3073 10.07 20.07 0.73 0.84
4 A' 1675 1658 98.34 11.83 0.07 0.14
5 A' 1371 1357 3.66 2.27 0.60 0.75
6 A' 1301 1288 3.83 17.22 0.58 0.73
7 A' 1161 1149 80.31 3.45 0.09 0.17
8 A' 920 910 22.12 4.89 0.36 0.53
9 A' 466 461 3.03 1.30 0.61 0.76
10 A" 944 935 23.13 0.26 0.75 0.86
11 A" 823 814 40.18 0.71 0.75 0.86
12 A" 718 710 1.94 5.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9411.1 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 9314.2 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 PBEPBEultrafine/6-31G(2df,p)
ABC
2.19356 0.34966 0.30158

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.428 0.000
C2 1.193 -0.163 0.000
F3 -1.154 -0.256 0.000
H4 -0.166 1.510 0.000
H5 1.295 -1.249 0.000
H6 2.093 0.451 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.33141.34071.09532.11842.0936
C21.33142.34852.15591.09061.0896
F31.34072.34852.02322.64223.3230
H41.09532.15592.02323.12212.4957
H52.11841.09062.64223.12211.8780
H62.09361.08963.32302.49571.8780

picture of Ethene, fluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.686 C1 C2 H6 119.377
C2 C1 F3 123.027 C2 C1 H4 125.060
F3 C1 H4 111.913 H5 C2 H6 118.937
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.061      
2 C -0.384      
3 F -0.058      
4 H 0.114      
5 H 0.133      
6 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.791 0.645 0.000 1.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.038 -0.523 0.000
y -0.523 -15.318 0.000
z 0.000 0.000 -18.431
Traceless
 xyz
x -0.163 -0.523 0.000
y -0.523 2.416 0.000
z 0.000 0.000 -2.253
Polar
3z2-r2-4.506
x2-y2-1.719
xy-0.523
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.643 -0.475 0.000
y -0.475 3.560 0.000
z 0.000 0.000 1.943


<r2> (average value of r2) Å2
<r2> 43.067
(<r2>)1/2 6.563