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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: wB97X-D/aug-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/aug-cc-pVQZ
 hartrees
Energy at 0K-78.594637
Energy at 298.15K-78.597827
HF Energy-78.594637
Nuclear repulsion energy33.545362
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/aug-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 0.00 210.37 0.10 0.18
2 Ag 1712 1712 0.00 37.85 0.01 0.02
3 Ag 1390 1390 0.00 40.63 0.21 0.35
4 Au 1071 1071 0.00 0.00 0.00 0.00
5 B1u 3144 3144 15.23 0.00 0.00 0.00
6 B1u 1479 1479 11.93 0.00 0.00 0.00
7 B2g 1004 1004 0.00 3.42 0.75 0.86
8 B2u 3249 3249 18.64 0.00 0.00 0.00
9 B2u 842 842 0.05 0.00 0.00 0.00
10 B3g 3223 3223 0.00 116.58 0.75 0.86
11 B3g 1251 1251 0.00 0.11 0.75 0.86
12 B3u 989 989 102.43 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11258.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11258.5 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/aug-cc-pVQZ
ABC
4.92307 1.01827 0.84375

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-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
C11.32141.08221.08222.10152.1015
C21.32142.10152.10151.08221.0822
H31.08222.10151.84333.07072.4560
H41.08222.10151.84332.45603.0707
H52.10151.08223.07072.45601.8433
H62.10151.08222.45603.07071.8433

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.614 C1 C2 H6 121.614
C2 C1 H3 121.614 C2 C1 H4 121.614
H3 C1 H4 116.771 H5 C2 H6 116.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.458      
2 C -0.458      
3 H 0.229      
4 H 0.229      
5 H 0.229      
6 H 0.229      


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 -15.608 0.000 0.000
y 0.000 -12.262 0.000
z 0.000 0.000 -12.180
Traceless
 xyz
x -3.387 0.000 0.000
y 0.000 1.632 0.000
z 0.000 0.000 1.755
Polar
3z2-r23.510
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 3.336 0.000 0.000
y 0.000 3.733 0.000
z 0.000 0.000 5.233


<r2> (average value of r2) Å2
<r2> 23.006
(<r2>)1/2 4.796