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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3LYPultrafine/TZVP

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/TZVP
 hartrees
Energy at 0K-78.621544
Energy at 298.15K-78.624725
HF Energy-78.621544
Nuclear repulsion energy33.455097
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/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 Ag 3143 3028 0.00 220.13 0.15 0.26
2 Ag 1693 1631 0.00 16.07 0.02 0.05
3 Ag 1385 1334 0.00 36.55 0.33 0.50
4 Au 1063 1024 0.00 0.00 0.00 0.00
5 B1u 3130 3015 17.01 0.00 0.00 0.00
6 B1u 1479 1425 9.81 0.00 0.00 0.00
7 B2g 982 946 0.00 1.28 0.75 0.86
8 B2u 3228 3110 25.14 0.00 0.00 0.00
9 B2u 840 809 0.74 0.00 0.00 0.00
10 B3g 3200 3083 0.00 123.43 0.75 0.86
11 B3g 1245 1200 0.00 0.48 0.75 0.86
12 B3u 979 943 111.80 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11182.7 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 10773.4 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 B3LYPultrafine/TZVP
ABC
4.92402 1.01052 0.83845

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.663
C2 0.000 0.000 -0.663
H3 0.000 0.922 1.234
H4 0.000 -0.922 1.234
H5 0.000 -0.922 -1.234
H6 0.000 0.922 -1.234

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.32591.08391.08392.10862.1086
C21.32592.10862.10861.08391.0839
H31.08392.10861.84313.07962.4672
H41.08392.10861.84312.46723.0796
H52.10861.08393.07962.46721.8431
H62.10861.08392.46723.07961.8431

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.769 C1 C2 H6 121.769
C2 C1 H3 121.769 C2 C1 H4 121.769
H3 C1 H4 116.462 H5 C2 H6 116.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.227      
2 C -0.227      
3 H 0.114      
4 H 0.114      
5 H 0.114      
6 H 0.114      


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 -15.758 0.000 0.000
y 0.000 -12.412 0.000
z 0.000 0.000 -12.404
Traceless
 xyz
x -3.350 0.000 0.000
y 0.000 1.670 0.000
z 0.000 0.000 1.681
Polar
3z2-r23.361
x2-y2-3.346
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.356 0.000 0.000
y 0.000 3.221 0.000
z 0.000 0.000 5.160


<r2> (average value of r2) Å2
<r2> 23.205
(<r2>)1/2 4.817