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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3LYPultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYPultrafine/Def2TZVPP
 hartrees
Energy at 0K-78.625355
Energy at 298.15K-78.628534
HF Energy-78.625355
Nuclear repulsion energy33.487500
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 B3LYPultrafine/Def2TZVPP
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 3143 3143 0.00 218.03 0.13 0.23
2 Ag 1692 1692 0.00 16.93 0.02 0.04
3 Ag 1382 1382 0.00 37.05 0.30 0.46
4 Au 1064 1064 0.00 0.00 0.00 0.00
5 B1u 3129 3129 16.88 0.00 0.00 0.00
6 B1u 1479 1479 9.57 0.00 0.00 0.00
7 B2g 985 985 0.00 2.16 0.75 0.86
8 B2u 3228 3228 22.18 0.00 0.00 0.00
9 B2u 837 837 0.18 0.00 0.00 0.00
10 B3g 3200 3200 0.00 121.19 0.75 0.86
11 B3g 1247 1247 0.00 0.37 0.75 0.86
12 B3u 979 979 99.27 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11182.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11182.2 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 B3LYPultrafine/Def2TZVPP
ABC
4.93138 1.01254 0.84005

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.662
C2 0.000 0.000 -0.662
H3 0.000 0.921 1.232
H4 0.000 -0.921 1.232
H5 0.000 -0.921 -1.232
H6 0.000 0.921 -1.232

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.32491.08271.08272.10632.1063
C21.32492.10632.10631.08271.0827
H31.08272.10631.84173.07602.4637
H41.08272.10631.84172.46373.0760
H52.10631.08273.07602.46371.8417
H62.10631.08272.46373.07601.8417

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.731 C1 C2 H6 121.731
C2 C1 H3 121.731 C2 C1 H4 121.731
H3 C1 H4 116.538 H5 C2 H6 116.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.204      
2 C -0.204      
3 H 0.102      
4 H 0.102      
5 H 0.102      
6 H 0.102      


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 -15.666 0.000 0.000
y 0.000 -12.479 0.000
z 0.000 0.000 -12.400
Traceless
 xyz
x -3.227 0.000 0.000
y 0.000 1.554 0.000
z 0.000 0.000 1.672
Polar
3z2-r23.345
x2-y2-3.187
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.669 0.000 0.000
y 0.000 3.419 0.000
z 0.000 0.000 5.176


<r2> (average value of r2) Å2
<r2> 23.169
(<r2>)1/2 4.813