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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3LYPultrafine/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-78.599644
Energy at 298.15K-78.602813
HF Energy-78.599644
Nuclear repulsion energy33.299580
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/6-31+G**
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 3157 3039 0.00 200.30 0.17 0.30
2 Ag 1695 1632 0.00 34.10 0.03 0.06
3 Ag 1380 1329 0.00 40.07 0.33 0.50
4 Au 1055 1016 0.00 0.00 0.00 0.00
5 B1u 3142 3025 17.53 0.00 0.00 0.00
6 B1u 1476 1421 7.81 0.00 0.00 0.00
7 B2g 967 931 0.00 3.87 0.75 0.86
8 B2u 3245 3124 27.21 0.00 0.00 0.00
9 B2u 833 802 0.94 0.00 0.00 0.00
10 B3g 3218 3098 0.00 127.72 0.75 0.86
11 B3g 1237 1191 0.00 1.22 0.75 0.86
12 B3u 975 939 120.06 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11190.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 10772.8 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/6-31+G**
ABC
4.89242 0.99941 0.82988

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

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 0.925 1.239
H4 0.000 -0.925 1.239
H5 0.000 -0.925 -1.239
H6 0.000 0.925 -1.239

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33431.08691.08692.11832.1183
C21.33432.11832.11831.08691.0869
H31.08692.11831.84903.09142.4774
H41.08692.11831.84902.47743.0914
H52.11831.08693.09142.47741.8490
H62.11831.08692.47743.09141.8490

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.726 C1 C2 H6 121.726
C2 C1 H3 121.726 C2 C1 H4 121.726
H3 C1 H4 116.547 H5 C2 H6 116.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.272      
2 C -0.272      
3 H 0.136      
4 H 0.136      
5 H 0.136      
6 H 0.136      


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 -15.992 0.000 0.000
y 0.000 -12.447 0.000
z 0.000 0.000 -12.407
Traceless
 xyz
x -3.565 0.000 0.000
y 0.000 1.752 0.000
z 0.000 0.000 1.813
Polar
3z2-r23.625
x2-y2-3.545
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.683 0.000 0.000
y 0.000 3.142 0.000
z 0.000 0.000 5.204


<r2> (average value of r2) Å2
<r2> 23.402
(<r2>)1/2 4.838