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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: TPSSh/aug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-78.602886
Energy at 298.15K-78.606061
HF Energy-78.602886
Nuclear repulsion energy33.205651
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-pVDZ
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 3147 3045 0.00 229.50 0.11 0.19
2 Ag 1685 1630 0.00 32.93 0.01 0.02
3 Ag 1379 1334 0.00 41.52 0.23 0.37
4 Au 1053 1019 0.00 0.00 0.00 0.00
5 B1u 3131 3029 22.05 0.00 0.00 0.00
6 B1u 1472 1424 7.61 0.00 0.00 0.00
7 B2g 976 944 0.00 2.93 0.75 0.86
8 B2u 3240 3134 30.33 0.00 0.00 0.00
9 B2u 819 793 0.02 0.00 0.00 0.00
10 B3g 3210 3105 0.00 130.45 0.75 0.86
11 B3g 1236 1195 0.00 0.10 0.75 0.86
12 B3u 989 957 97.92 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11169.6 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 10804.3 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-pVDZ
ABC
4.84940 0.99531 0.82581

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.668
C2 0.000 0.000 -0.668
H3 0.000 0.929 1.242
H4 0.000 -0.929 1.242
H5 0.000 -0.929 -1.242
H6 0.000 0.929 -1.242

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33681.09131.09132.12392.1239
C21.33682.12392.12391.09131.0913
H31.09132.12391.85723.10112.4834
H41.09132.12391.85722.48343.1011
H52.12391.09133.10112.48341.8572
H62.12391.09132.48343.10111.8572

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.692 C1 C2 H6 121.692
C2 C1 H3 121.692 C2 C1 H4 121.692
H3 C1 H4 116.616 H5 C2 H6 116.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.668      
2 C 0.668      
3 H -0.334      
4 H -0.334      
5 H -0.334      
6 H -0.334      


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 3.331 0.000 0.000
y 0.000 3.750 0.000
z 0.000 0.000 5.364


<r2> (average value of r2) Å2
<r2> 23.393
(<r2>)1/2 4.837