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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3LYP/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYP/daug-cc-pVTZ
 hartrees
Energy at 0K-78.624142
Energy at 298.15K-78.627318
HF Energy-78.624142
Nuclear repulsion energy33.490416
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 B3LYP/daug-cc-pVTZ
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 3139 3139 0.00 216.74 0.11 0.19
2 Ag 1689 1689 0.00 33.99 0.01 0.02
3 Ag 1380 1380 0.00 43.19 0.20 0.33
4 Au 1064 1064 0.00 0.00 0.00 0.00
5 B1u 3126 3126 16.48 0.00 0.00 0.00
6 B1u 1479 1479 9.55 0.00 0.00 0.00
7 B2g 985 985 0.00 3.18 0.75 0.86
8 B2u 3223 3223 20.30 0.00 0.00 0.00
9 B2u 835 835 0.04 0.00 0.00 0.00
10 B3g 3194 3194 0.00 123.25 0.75 0.86
11 B3g 1246 1246 0.00 0.07 0.75 0.86
12 B3u 979 979 96.73 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11169.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11169.4 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 B3LYP/daug-cc-pVTZ
ABC
4.93328 1.01258 0.84014

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/daug-cc-pVTZ

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
C11.32491.08241.08242.10612.1061
C21.32492.10612.10611.08241.0824
H31.08242.10611.84143.07552.4634
H41.08242.10611.84142.46343.0755
H52.10611.08243.07552.46341.8414
H62.10611.08242.46343.07551.8414

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.728 C1 C2 H6 121.728
C2 C1 H3 121.728 C2 C1 H4 121.728
H3 C1 H4 116.544 H5 C2 H6 116.544
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.972      
2 C -0.972      
3 H 0.486      
4 H 0.486      
5 H 0.486      
6 H 0.486      


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 -15.735 0.000 0.000
y 0.000 -12.518 0.000
z 0.000 0.000 -12.447
Traceless
 xyz
x -3.252 0.000 0.000
y 0.000 1.573 0.000
z 0.000 0.000 1.680
Polar
3z2-r23.359
x2-y2-3.217
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.390 0.000 0.000
y 0.000 3.799 0.000
z 0.000 0.000 5.309


<r2> (average value of r2) Å2
<r2> 23.199
(<r2>)1/2 4.816