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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3LYPultrafine/daug-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 B3LYPultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-78.599053
Energy at 298.15K-78.602252
HF Energy-78.599053
Nuclear repulsion energy33.238060
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/daug-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 3143 3143 0.00 227.92 0.11 0.19
2 Ag 1682 1682 0.00 36.46 0.01 0.02
3 Ag 1371 1371 0.00 42.20 0.21 0.35
4 Au 1092 1092 0.00 0.00 0.00 0.00
5 B1u 3132 3132 17.18 0.00 0.00 0.00
6 B1u 1461 1461 9.85 0.00 0.00 0.00
7 B2g 1053 1053 0.00 2.48 0.75 0.86
8 B2u 3240 3240 21.76 0.00 0.00 0.00
9 B2u 827 827 0.07 0.00 0.00 0.00
10 B3g 3215 3215 0.00 128.37 0.75 0.86
11 B3g 1232 1232 0.00 0.01 0.75 0.86
12 B3u 1002 1002 98.71 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11224.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11224.9 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/daug-cc-pVDZ
ABC
4.85680 0.99747 0.82751

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/daug-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 0.928 1.240
H4 0.000 -0.928 1.240
H5 0.000 -0.928 -1.240
H6 0.000 0.928 -1.240

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33521.09051.09052.12172.1217
C21.33522.12172.12171.09051.0905
H31.09052.12171.85583.09822.4809
H41.09052.12171.85582.48093.0982
H52.12171.09053.09822.48091.8558
H62.12171.09052.48093.09821.8558

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.689 C1 C2 H6 121.689
C2 C1 H3 121.689 C2 C1 H4 121.689
H3 C1 H4 116.621 H5 C2 H6 116.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.657      
2 C 1.657      
3 H -0.829      
4 H -0.829      
5 H -0.829      
6 H -0.829      


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 -15.799 0.000 0.000
y 0.000 -12.574 0.000
z 0.000 0.000 -12.523
Traceless
 xyz
x -3.250 0.000 0.000
y 0.000 1.586 0.000
z 0.000 0.000 1.664
Polar
3z2-r23.328
x2-y2-3.224
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.424 0.000 0.000
y 0.000 3.865 0.000
z 0.000 0.000 5.411


<r2> (average value of r2) Å2
<r2> 23.462
(<r2>)1/2 4.844