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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-78.498481
Energy at 298.15K-78.501621
HF Energy-78.498481
Nuclear repulsion energy33.229865
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 PBEPBEultrafine/TZVP
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 3077 3041 0.00 230.08 0.14 0.25
2 Ag 1644 1626 0.00 13.65 0.02 0.03
3 Ag 1345 1330 0.00 33.17 0.34 0.51
4 Au 1033 1022 0.00 0.00 0.00 0.00
5 B1u 3063 3029 17.27 0.00 0.00 0.00
6 B1u 1426 1409 9.70 0.00 0.00 0.00
7 B2g 932 921 0.00 0.55 0.75 0.86
8 B2u 3164 3128 23.01 0.00 0.00 0.00
9 B2u 810 801 1.18 0.00 0.00 0.00
10 B3g 3136 3100 0.00 127.65 0.75 0.86
11 B3g 1201 1187 0.00 0.46 0.75 0.86
12 B3u 940 929 108.80 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 10885.5 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 10761.4 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 PBEPBEultrafine/TZVP
ABC
4.84655 0.99812 0.82767

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.667
C2 0.000 0.000 -0.667
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
C11.33381.09241.09242.12262.1226
C21.33382.12262.12261.09241.0924
H31.09242.12261.85783.10142.4835
H41.09242.12261.85782.48353.1014
H52.12261.09243.10142.48351.8578
H62.12261.09242.48353.10141.8578

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.751 C1 C2 H6 121.751
C2 C1 H3 121.751 C2 C1 H4 121.751
H3 C1 H4 116.497 H5 C2 H6 116.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.233      
2 C -0.233      
3 H 0.117      
4 H 0.117      
5 H 0.117      
6 H 0.117      


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 -15.740 0.000 0.000
y 0.000 -12.362 0.000
z 0.000 0.000 -12.406
Traceless
 xyz
x -3.356 0.000 0.000
y 0.000 1.711 0.000
z 0.000 0.000 1.645
Polar
3z2-r23.290
x2-y2-3.378
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.360 0.000 0.000
y 0.000 3.331 0.000
z 0.000 0.000 5.214


<r2> (average value of r2) Å2
<r2> 23.389
(<r2>)1/2 4.836