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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: TPSSh/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-78.624340
Energy at 298.15K-78.627518
HF Energy-78.624340
Nuclear repulsion energy33.434667
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 TPSSh/aug-cc-pVTZ
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 3137 3028 0.00 222.49 0.10 0.19
2 Ag 1687 1628 0.00 31.25 0.01 0.02
3 Ag 1384 1335 0.00 42.66 0.21 0.34
4 Au 1064 1027 0.00 0.00 0.00 0.00
5 B1u 3121 3013 18.89 0.00 0.00 0.00
6 B1u 1484 1432 8.26 0.00 0.00 0.00
7 B2g 975 941 0.00 2.88 0.75 0.86
8 B2u 3221 3109 24.39 0.00 0.00 0.00
9 B2u 823 794 0.03 0.00 0.00 0.00
10 B3g 3192 3081 0.00 126.93 0.75 0.86
11 B3g 1248 1205 0.00 0.07 0.75 0.86
12 B3u 983 949 96.49 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11159.0 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 10770.7 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 TPSSh/aug-cc-pVTZ
ABC
4.91697 1.00917 0.83731

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.664
C2 0.000 0.000 -0.664
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
C11.32721.08411.08412.10952.1095
C21.32722.10952.10951.08411.0841
H31.08412.10951.84443.08052.4673
H41.08412.10951.84442.46733.0805
H52.10951.08413.08052.46731.8444
H62.10951.08412.46733.08051.8444

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.720 C1 C2 H6 121.720
C2 C1 H3 121.720 C2 C1 H4 121.720
H3 C1 H4 116.560 H5 C2 H6 116.560
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C -0.397      
3 H 0.199      
4 H 0.199      
5 H 0.199      
6 H 0.199      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.324 0.000 0.000
y 0.000 3.763 0.000
z 0.000 0.000 5.283


<r2> (average value of r2) Å2
<r2> 23.158
(<r2>)1/2 4.812