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: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-175.365998
Energy at 298.15K 
HF Energy-175.365998
Nuclear repulsion energy66.387391
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 B3PW91/STO-3G
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' 3591 3178 1.10 29.17 0.74 0.85
2 A' 3434 3039 23.33 49.74 0.13 0.24
3 A' 3380 2991 9.76 25.52 0.49 0.66
4 A' 1851 1638 51.64 3.71 0.10 0.18
5 A' 1562 1382 2.58 6.04 0.74 0.85
6 A' 1407 1245 0.11 19.59 0.54 0.70
7 A' 1275 1129 23.78 2.48 0.15 0.26
8 A' 1022 905 6.15 4.40 0.45 0.62
9 A' 486 430 1.34 1.27 0.65 0.79
10 A" 1043 923 12.42 0.01 0.75 0.86
11 A" 908 803 29.40 0.40 0.75 0.86
12 A" 723 640 0.33 4.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10340.7 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 9151.5 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 B3PW91/STO-3G
ABC
2.17903 0.33812 0.29270

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.427 0.000
C2 1.210 -0.154 0.000
F3 -1.175 -0.266 0.000
H4 -0.126 1.530 0.000
H5 1.329 -1.240 0.000
H6 2.115 0.458 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.34221.36441.10942.13272.1151
C21.34222.38782.14901.09321.0921
F31.36442.38782.07932.68763.3687
H41.10942.14902.07933.12892.4842
H52.13271.09322.68763.12891.8707
H62.11511.09213.36872.48421.8707

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 121.927 C1 C2 H6 120.316
C2 C1 F3 123.821 C2 C1 H4 122.176
F3 C1 H4 114.003 H5 C2 H6 117.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.015      
2 C -0.205      
3 F -0.061      
4 H 0.081      
5 H 0.084      
6 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.259 0.431 0.000 0.503
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.788 -0.244 0.000
y -0.244 -14.544 0.000
z 0.000 0.000 -16.574
Traceless
 xyz
x -0.229 -0.244 0.000
y -0.244 1.637 0.000
z 0.000 0.000 -1.408
Polar
3z2-r2-2.816
x2-y2-1.244
xy-0.244
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.905 -0.280 0.000
y -0.280 1.853 0.000
z 0.000 0.000 0.406


<r2> (average value of r2) Å2
<r2> 43.196
(<r2>)1/2 6.572