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: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-177.697830
Energy at 298.15K 
HF Energy-177.519962
Nuclear repulsion energy67.742912
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=FULLultrafine/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' 3315 3315 1.54 39.29 0.70 0.82
2 A' 3236 3236 8.58 115.62 0.22 0.36
3 A' 3212 3212 2.07 35.45 0.16 0.28
4 A' 1730 1730 97.00 12.13 0.08 0.14
5 A' 1435 1435 4.09 2.57 0.57 0.73
6 A' 1355 1355 3.73 17.02 0.55 0.71
7 A' 1198 1198 83.32 2.85 0.08 0.15
8 A' 956 956 27.83 4.70 0.34 0.50
9 A' 483 483 3.80 1.29 0.61 0.76
10 A" 993 993 22.58 0.43 0.75 0.86
11 A" 883 883 42.79 1.02 0.75 0.86
12 A" 747 747 1.13 5.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9771.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9771.3 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=FULLultrafine/6-31G(2df,p)
ABC
2.22140 0.35489 0.30600

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.427 0.000
C2 1.185 -0.159 0.000
F3 -1.144 -0.258 0.000
H4 -0.168 1.497 0.000
H5 1.282 -1.234 0.000
H6 2.076 0.450 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.32171.33371.08292.09842.0764
C21.32172.33162.13781.08021.0791
F31.33372.33162.00792.61573.2975
H41.08292.13782.00793.09212.4764
H52.09841.08022.61573.09211.8620
H62.07641.07913.29752.47641.8620

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 121.447 C1 C2 H6 119.393
C2 C1 F3 122.818 C2 C1 H4 125.218
F3 C1 H4 111.963 H5 C2 H6 119.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.109      
2 C -0.390      
3 F -0.120      
4 H 0.122      
5 H 0.139      
6 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.942 0.730 0.000 1.192
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.198 -0.619 -0.004
y -0.619 -15.310 -0.001
z -0.004 -0.001 -18.427
Traceless
 xyz
x -0.330 -0.619 -0.004
y -0.619 2.502 -0.001
z -0.004 -0.001 -2.173
Polar
3z2-r2-4.345
x2-y2-1.888
xy-0.619
xz-0.004
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.469 -0.483 0.000
y -0.483 3.408 0.000
z 0.000 0.000 1.889


<r2> (average value of r2) Å2
<r2> 42.609
(<r2>)1/2 6.528