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**

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**
 hartrees
Energy at 0K-177.619927
Energy at 298.15K 
HF Energy-177.619927
Nuclear repulsion energy66.979741
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**
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' 3224 3180 2.89 45.26 0.73 0.84
2 A' 3135 3092 7.36 153.80 0.17 0.29
3 A' 3118 3075 8.01 18.31 0.64 0.78
4 A' 1686 1663 94.54 11.43 0.08 0.16
5 A' 1380 1361 4.38 2.68 0.59 0.74
6 A' 1301 1283 2.46 18.51 0.59 0.74
7 A' 1160 1144 86.55 3.17 0.12 0.21
8 A' 918 906 23.36 5.13 0.43 0.60
9 A' 468 462 3.13 1.47 0.66 0.80
10 A" 937 924 27.19 0.34 0.75 0.86
11 A" 816 805 47.38 0.63 0.75 0.86
12 A" 712 702 0.96 8.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9426.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 9297.5 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**
ABC
2.16493 0.34742 0.29937

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.433 0.000
C2 1.197 -0.155 0.000
F3 -1.156 -0.267 0.000
H4 -0.175 1.515 0.000
H5 1.300 -1.241 0.000
H6 2.097 0.461 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.33391.35201.09532.12002.0973
C21.33392.35612.16091.09151.0905
F31.35202.35612.03442.64213.3339
H41.09532.16092.03443.12582.5042
H52.12001.09152.64213.12581.8801
H62.09731.09053.33392.50421.8801

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 121.560 C1 C2 H6 119.439
C2 C1 F3 122.615 C2 C1 H4 125.349
F3 C1 H4 112.036 H5 C2 H6 119.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.184      
2 C -0.308      
3 F -0.236      
4 H 0.107      
5 H 0.129      
6 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.848 0.687 0.000 1.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.947 -0.508 0.000
y -0.508 -15.250 0.000
z 0.000 0.000 -18.501
Traceless
 xyz
x -0.072 -0.508 0.000
y -0.508 2.474 0.000
z 0.000 0.000 -2.402
Polar
3z2-r2-4.804
x2-y2-1.697
xy-0.508
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.526 -0.489 0.000
y -0.489 3.389 0.000
z 0.000 0.000 1.530


<r2> (average value of r2) Å2
<r2> 43.267
(<r2>)1/2 6.578