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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: TPSSh/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-78.621472
Energy at 298.15K-78.624650
HF Energy-78.621472
Nuclear repulsion energy33.434334
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/6-311+G(3df,2p)
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 3136 3136 0.00 203.72 0.12 0.21
2 Ag 1685 1685 0.00 31.53 0.02 0.03
3 Ag 1384 1384 0.00 40.72 0.23 0.38
4 Au 1069 1069 0.00 0.00 0.00 0.00
5 B1u 3120 3120 19.06 0.00 0.00 0.00
6 B1u 1483 1483 8.99 0.00 0.00 0.00
7 B2g 977 977 0.00 3.12 0.75 0.86
8 B2u 3220 3220 24.87 0.00 0.00 0.00
9 B2u 823 823 0.05 0.00 0.00 0.00
10 B3g 3191 3191 0.00 124.74 0.75 0.86
11 B3g 1247 1247 0.00 0.25 0.75 0.86
12 B3u 985 985 99.61 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11159.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11159.0 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/6-311+G(3df,2p)
ABC
4.92180 1.00876 0.83717

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311+G(3df,2p)

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
C11.32741.08401.08402.10982.1098
C21.32742.10982.10981.08401.0840
H31.08402.10981.84353.08072.4682
H41.08402.10981.84352.46823.0807
H52.10981.08403.08072.46821.8435
H62.10981.08402.46823.08071.8435

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.752 C1 C2 H6 121.752
C2 C1 H3 121.752 C2 C1 H4 121.752
H3 C1 H4 116.496 H5 C2 H6 116.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.187      
2 C -0.187      
3 H 0.094      
4 H 0.094      
5 H 0.094      
6 H 0.094      


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 3.254 0.000 0.000
y 0.000 3.625 0.000
z 0.000 0.000 5.188


<r2> (average value of r2) Å2
<r2> 23.156
(<r2>)1/2 4.812