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: B1B95/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-177.828359
Energy at 298.15K 
HF Energy-177.828359
Nuclear repulsion energy67.822892
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 B1B95/TZVP
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' 3299 3156 1.38 39.81 0.70 0.82
2 A' 3229 3090 7.64 120.96 0.25 0.40
3 A' 3197 3059 1.44 59.49 0.17 0.29
4 A' 1740 1665 114.74 28.55 0.05 0.10
5 A' 1418 1357 4.54 3.06 0.42 0.60
6 A' 1345 1287 2.55 16.55 0.52 0.68
7 A' 1189 1138 118.91 2.08 0.18 0.30
8 A' 948 907 37.85 4.56 0.38 0.55
9 A' 490 468 3.84 2.10 0.68 0.81
10 A" 979 937 31.92 1.38 0.75 0.86
11 A" 894 856 60.85 1.48 0.75 0.86
12 A" 736 704 3.61 2.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9731.3 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 9311.9 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 B1B95/TZVP
ABC
2.20767 0.35711 0.30739

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.430 0.000
C2 1.181 -0.146 0.000
F3 -1.139 -0.273 0.000
H4 -0.186 1.495 0.000
H5 1.285 -1.220 0.000
H6 2.067 0.469 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.31411.33871.08102.09162.0672
C21.31412.32372.13581.07931.0782
F31.33872.32372.00862.60263.2907
H41.08102.13582.00863.08812.4756
H52.09161.07932.60263.08811.8613
H62.06721.07823.29072.47561.8613

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 121.524 C1 C2 H6 119.237
C2 C1 F3 122.312 C2 C1 H4 125.911
F3 C1 H4 111.777 H5 C2 H6 119.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.100      
2 C -0.286      
3 F -0.194      
4 H 0.107      
5 H 0.140      
6 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.219 0.867 0.000 1.496
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.588 -0.800 0.000
y -0.800 -15.408 0.000
z 0.000 0.000 -19.055
Traceless
 xyz
x -0.357 -0.800 0.000
y -0.800 2.914 0.000
z 0.000 0.000 -2.557
Polar
3z2-r2-5.114
x2-y2-2.180
xy-0.800
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.748 -0.570 0.000
y -0.570 3.464 0.000
z 0.000 0.000 2.378


<r2> (average value of r2) Å2
<r2> 42.695
(<r2>)1/2 6.534