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/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/6-31G(2df,p)
 hartrees
Energy at 0K-177.692178
Energy at 298.15K 
HF Energy-177.519917
Nuclear repulsion energy67.702222
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/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' 3312 3163 1.57 39.31 0.70 0.83
2 A' 3234 3088 8.61 114.61 0.22 0.37
3 A' 3209 3064 1.95 36.81 0.16 0.28
4 A' 1728 1651 96.31 12.15 0.08 0.14
5 A' 1433 1369 4.08 2.50 0.57 0.73
6 A' 1353 1292 3.65 17.19 0.55 0.71
7 A' 1196 1143 83.46 2.83 0.08 0.15
8 A' 955 912 27.94 4.72 0.34 0.50
9 A' 483 461 3.81 1.29 0.61 0.76
10 A" 992 947 22.85 0.42 0.75 0.86
11 A" 883 843 42.54 1.01 0.75 0.86
12 A" 747 713 1.08 5.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9762.3 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 9323.0 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/6-31G(2df,p)
ABC
2.21614 0.35461 0.30570

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.428 0.000
C2 1.186 -0.159 0.000
F3 -1.145 -0.258 0.000
H4 -0.169 1.498 0.000
H5 1.282 -1.235 0.000
H6 2.077 0.450 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.32261.33471.08332.09952.0774
C21.32262.33252.13961.08071.0796
F31.33472.33252.00922.61593.2991
H41.08332.13962.00923.09392.4785
H52.09951.08072.61593.09391.8632
H62.07741.07963.29912.47851.8632

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 121.431 C1 C2 H6 119.377
C2 C1 F3 122.752 C2 C1 H4 125.278
F3 C1 H4 111.970 H5 C2 H6 119.192
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.109      
2 C -0.390      
3 F -0.121      
4 H 0.123      
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
  0.945 0.733 0.000 1.196
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.202 -0.622 -0.004
y -0.622 -15.307 -0.001
z -0.004 -0.001 -18.433
Traceless
 xyz
x -0.332 -0.622 -0.004
y -0.622 2.510 -0.001
z -0.004 -0.001 -2.178
Polar
3z2-r2-4.356
x2-y2-1.895
xy-0.622
xz-0.004
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.474 -0.484 0.000
y -0.484 3.412 0.000
z 0.000 0.000 1.890


<r2> (average value of r2) Å2
<r2> 42.642
(<r2>)1/2 6.530