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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: wB97X-D/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at wB97X-D/cc-pVQZ
 hartrees
Energy at 0K-78.594257
Energy at 298.15K-78.597447
HF Energy-78.594257
Nuclear repulsion energy33.549210
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 wB97X-D/cc-pVQZ
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 3162 3162 0.00 212.34 0.11 0.19
2 Ag 1713 1713 0.00 22.69 0.03 0.05
3 Ag 1390 1390 0.00 35.44 0.31 0.48
4 Au 1074 1074 0.00 0.00 0.00 0.00
5 B1u 3144 3144 15.49 0.00 0.00 0.00
6 B1u 1478 1478 11.69 0.00 0.00 0.00
7 B2g 1004 1004 0.00 2.92 0.75 0.86
8 B2u 3248 3248 19.39 0.00 0.00 0.00
9 B2u 842 842 0.12 0.00 0.00 0.00
10 B3g 3222 3222 0.00 117.11 0.75 0.86
11 B3g 1249 1249 0.00 0.30 0.75 0.86
12 B3u 989 989 98.51 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11257.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11257.7 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 wB97X-D/cc-pVQZ
ABC
4.92409 1.01854 0.84397

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVQZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.661
C2 0.000 0.000 -0.661
H3 0.000 0.922 1.228
H4 0.000 -0.922 1.228
H5 0.000 -0.922 -1.228
H6 0.000 0.922 -1.228

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.32111.08221.08222.10132.1013
C21.32112.10132.10131.08221.0822
H31.08222.10131.84313.07052.4559
H41.08222.10131.84312.45593.0705
H52.10131.08223.07052.45591.8431
H62.10131.08222.45593.07051.8431

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.619 C1 C2 H6 121.619
C2 C1 H3 121.619 C2 C1 H4 121.619
H3 C1 H4 116.762 H5 C2 H6 116.762
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.107      
2 C -0.107      
3 H 0.053      
4 H 0.053      
5 H 0.053      
6 H 0.053      


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 -15.511 0.000 0.000
y 0.000 -12.233 0.000
z 0.000 0.000 -12.170
Traceless
 xyz
x -3.309 0.000 0.000
y 0.000 1.607 0.000
z 0.000 0.000 1.702
Polar
3z2-r23.405
x2-y2-3.277
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.730 0.000 0.000
y 0.000 3.503 0.000
z 0.000 0.000 5.150


<r2> (average value of r2) Å2
<r2> 22.974
(<r2>)1/2 4.793