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: mPW1PW91/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-177.850878
Energy at 298.15K 
HF Energy-177.850878
Nuclear repulsion energy67.804557
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 mPW1PW91/daug-cc-pVTZ
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' 3288 3288 0.98 38.98 0.69 0.81
2 A' 3219 3219 5.36 116.67 0.21 0.35
3 A' 3187 3187 1.47 60.33 0.10 0.19
4 A' 1729 1729 117.38 44.36 0.03 0.05
5 A' 1414 1414 5.18 4.11 0.28 0.44
6 A' 1338 1338 2.12 16.68 0.35 0.52
7 A' 1187 1187 108.25 2.54 0.16 0.28
8 A' 948 948 38.50 4.72 0.29 0.45
9 A' 488 488 3.79 1.36 0.55 0.71
10 A" 977 977 28.99 1.25 0.75 0.86
11 A" 900 900 54.88 3.46 0.75 0.86
12 A" 738 738 4.91 0.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9705.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9705.6 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 mPW1PW91/daug-cc-pVTZ
ABC
2.20351 0.35706 0.30727

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.431 0.000
C2 1.181 -0.149 0.000
F3 -1.140 -0.270 0.000
H4 -0.182 1.497 0.000
H5 1.284 -1.224 0.000
H6 2.067 0.467 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.31561.33801.08182.09422.0673
C21.31562.32402.13691.08001.0788
F31.33802.32402.01012.60443.2903
H41.08182.13692.01013.09062.4737
H52.09421.08002.60443.09061.8633
H62.06731.07883.29032.47371.8633

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 121.589 C1 C2 H6 119.075
C2 C1 F3 122.278 C2 C1 H4 125.811
F3 C1 H4 111.910 H5 C2 H6 119.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.094      
2 C -1.319      
3 F -0.832      
4 H 0.867      
5 H 0.642      
6 H 0.548      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.118 0.762 0.000 1.353
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.545 -0.843 0.000
y -0.843 -15.520 0.000
z 0.000 0.000 -19.098
Traceless
 xyz
x -0.237 -0.843 0.000
y -0.843 2.802 0.000
z 0.000 0.000 -2.565
Polar
3z2-r2-5.131
x2-y2-2.026
xy-0.843
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.122 -0.453 0.000
y -0.453 4.018 0.000
z 0.000 0.000 3.262


<r2> (average value of r2) Å2
<r2> 42.734
(<r2>)1/2 6.537