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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-78.484237
Energy at 298.15K-78.487365
HF Energy-78.484237
Nuclear repulsion energy33.190876
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 PBEPBE/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3072 3040 0.00 205.18 0.15 0.26
2 Ag 1653 1636 0.00 8.52 0.01 0.03
3 Ag 1347 1333 0.00 30.58 0.40 0.58
4 Au 1037 1027 0.00 0.00 0.00 0.00
5 B1u 3057 3025 25.33 0.00 0.00 0.00
6 B1u 1430 1415 9.21 0.00 0.00 0.00
7 B2g 905 896 0.00 0.77 0.75 0.86
8 B2u 3158 3126 36.91 0.00 0.00 0.00
9 B2u 812 803 1.20 0.00 0.00 0.00
10 B3g 3130 3097 0.00 138.22 0.75 0.86
11 B3g 1207 1194 0.00 0.52 0.75 0.86
12 B3u 928 918 107.48 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 10867.4 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 10754.4 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 PBEPBE/6-311G*
ABC
4.83924 0.99564 0.82575

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.667
C2 0.000 0.000 -0.667
H3 0.000 0.930 1.244
H4 0.000 -0.930 1.244
H5 0.000 -0.930 -1.244
H6 0.000 0.930 -1.244

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33481.09401.09402.12572.1257
C21.33482.12572.12571.09401.0940
H31.09402.12571.85923.10622.4884
H41.09402.12571.85922.48843.1062
H52.12571.09403.10622.48841.8592
H62.12571.09402.48843.10621.8592

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.819 C1 C2 H6 121.819
C2 C1 H3 121.819 C2 C1 H4 121.819
H3 C1 H4 116.362 H5 C2 H6 116.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.411      
2 C -0.411      
3 H 0.206      
4 H 0.206      
5 H 0.206      
6 H 0.206      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.631 0.000 0.000
y 0.000 -12.237 0.000
z 0.000 0.000 -12.239
Traceless
 xyz
x -3.393 0.000 0.000
y 0.000 1.698 0.000
z 0.000 0.000 1.695
Polar
3z2-r23.389
x2-y2-3.394
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.771 0.000 0.000
y 0.000 3.216 0.000
z 0.000 0.000 4.884


<r2> (average value of r2) Å2
<r2> 23.344
(<r2>)1/2 4.832