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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: PBE1PBE/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 PBE1PBE/cc-pVDZ
 hartrees
Energy at 0K-78.485639
Energy at 298.15K-78.488804
HF Energy-78.485639
Nuclear repulsion energy33.251925
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 PBE1PBE/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 3173 3051 0.00 211.85 0.12 0.22
2 Ag 1712 1646 0.00 11.99 0.05 0.10
3 Ag 1369 1316 0.00 33.90 0.44 0.61
4 Au 1062 1022 0.00 0.00 0.00 0.00
5 B1u 3154 3032 12.57 0.00 0.00 0.00
6 B1u 1439 1384 8.82 0.00 0.00 0.00
7 B2g 963 926 0.00 1.36 0.75 0.86
8 B2u 3270 3144 16.54 0.00 0.00 0.00
9 B2u 820 789 0.97 0.00 0.00 0.00
10 B3g 3244 3119 0.00 137.78 0.75 0.86
11 B3g 1225 1177 0.00 1.13 0.75 0.86
12 B3u 971 933 82.32 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11200.2 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 10769.0 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 PBE1PBE/cc-pVDZ
ABC
4.82227 1.00228 0.82981

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.665
C2 0.000 0.000 -0.665
H3 0.000 0.931 1.239
H4 0.000 -0.931 1.239
H5 0.000 -0.931 -1.239
H6 0.000 0.931 -1.239

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33101.09371.09372.12012.1201
C21.33102.12012.12011.09371.0937
H31.09372.12011.86243.10012.4783
H41.09372.12011.86242.47833.1001
H52.12011.09373.10012.47831.8624
H62.12011.09372.47833.10011.8624

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.634 C1 C2 H6 121.634
C2 C1 H3 121.634 C2 C1 H4 121.634
H3 C1 H4 116.732 H5 C2 H6 116.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.097      
2 C -0.097      
3 H 0.048      
4 H 0.048      
5 H 0.048      
6 H 0.048      


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 -15.218 0.000 0.000
y 0.000 -12.179 0.000
z 0.000 0.000 -12.117
Traceless
 xyz
x -3.070 0.000 0.000
y 0.000 1.488 0.000
z 0.000 0.000 1.582
Polar
3z2-r23.164
x2-y2-3.039
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.597 0.000 0.000
y 0.000 3.179 0.000
z 0.000 0.000 4.807


<r2> (average value of r2) Å2
<r2> 23.152
(<r2>)1/2 4.812