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/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-177.667759
Energy at 298.15K 
HF Energy-177.518794
Nuclear repulsion energy67.202234
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/cc-pVDZ
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' 3311 3171 1.56 46.38 0.72 0.83
2 A' 3234 3097 9.35 125.60 0.24 0.39
3 A' 3199 3063 1.07 58.03 0.15 0.26
4 A' 1728 1655 99.52 15.78 0.08 0.15
5 A' 1409 1349 5.24 2.77 0.57 0.72
6 A' 1331 1274 1.60 17.86 0.58 0.73
7 A' 1180 1131 94.50 1.89 0.15 0.25
8 A' 945 905 34.16 4.72 0.40 0.57
9 A' 480 460 4.39 1.63 0.66 0.80
10 A" 974 933 27.13 0.73 0.75 0.86
11 A" 872 835 43.81 1.74 0.75 0.86
12 A" 735 704 1.01 6.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9698.2 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9287.9 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 B2PLYP/cc-pVDZ
ABC
2.17247 0.35021 0.30159

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.432 0.000
C2 1.193 -0.156 0.000
F3 -1.152 -0.265 0.000
H4 -0.170 1.511 0.000
H5 1.285 -1.243 0.000
H6 2.091 0.460 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.33061.34641.09242.11142.0911
C21.33062.34732.15431.09041.0891
F31.34642.34732.02952.62563.3226
H41.09242.15432.02953.11532.4937
H52.11141.09042.62563.11531.8841
H62.09111.08913.32262.49371.8841

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 121.101 C1 C2 H6 119.251
C2 C1 F3 122.533 C2 C1 H4 125.238
F3 C1 H4 112.229 H5 C2 H6 119.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.152      
2 C -0.076      
3 F -0.188      
4 H 0.023      
5 H 0.045      
6 H 0.045      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.002 0.791 0.000 1.277
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.479 -0.611 -0.005
y -0.611 -15.504 -0.001
z -0.005 -0.001 -18.764
Traceless
 xyz
x -0.344 -0.611 -0.005
y -0.611 2.617 -0.001
z -0.005 -0.001 -2.273
Polar
3z2-r2-4.545
x2-y2-1.974
xy-0.611
xz-0.005
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.473 -0.531 0.000
y -0.531 3.377 0.000
z 0.000 0.000 1.643


<r2> (average value of r2) Å2
<r2> 43.246
(<r2>)1/2 6.576