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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3LYPultrafine/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYPultrafine/6-31G**
 hartrees
Energy at 0K-78.593808
Energy at 298.15K-78.596977
HF Energy-78.593808
Nuclear repulsion energy33.354347
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 B3LYPultrafine/6-31G**
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 3161 3037 0.00 187.77 0.12 0.21
2 Ag 1715 1647 0.00 7.05 0.06 0.10
3 Ag 1388 1334 0.00 35.70 0.43 0.60
4 Au 1069 1027 0.00 0.00 0.00 0.00
5 B1u 3145 3022 17.02 0.00 0.00 0.00
6 B1u 1483 1425 5.57 0.00 0.00 0.00
7 B2g 961 924 0.00 0.55 0.75 0.86
8 B2u 3247 3119 30.86 0.00 0.00 0.00
9 B2u 831 799 0.66 0.00 0.00 0.00
10 B3g 3221 3094 0.00 121.90 0.75 0.86
11 B3g 1242 1193 0.00 1.68 0.75 0.86
12 B3u 977 939 79.24 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11219.4 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 10779.6 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 B3LYPultrafine/6-31G**
ABC
4.90506 1.00353 0.83309

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.665
C2 0.000 0.000 -0.665
H3 0.000 0.923 1.238
H4 0.000 -0.923 1.238
H5 0.000 -0.923 -1.238
H6 0.000 0.923 -1.238

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33031.08671.08672.11542.1154
C21.33032.11542.11541.08671.0867
H31.08672.11541.84663.08902.4763
H41.08672.11541.84662.47633.0890
H52.11541.08673.08902.47631.8466
H62.11541.08672.47633.08901.8466

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.822 C1 C2 H6 121.822
C2 C1 H3 121.822 C2 C1 H4 121.822
H3 C1 H4 116.355 H5 C2 H6 116.355
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.202      
2 C -0.202      
3 H 0.101      
4 H 0.101      
5 H 0.101      
6 H 0.101      


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 -14.983 0.000 0.000
y 0.000 -12.140 0.000
z 0.000 0.000 -12.026
Traceless
 xyz
x -2.899 0.000 0.000
y 0.000 1.365 0.000
z 0.000 0.000 1.535
Polar
3z2-r23.070
x2-y2-2.843
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.319 0.000 0.000
y 0.000 3.067 0.000
z 0.000 0.000 4.605


<r2> (average value of r2) Å2
<r2> 23.002
(<r2>)1/2 4.796