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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-78.490781
Energy at 298.15K-78.493956
HF Energy-78.490781
Nuclear repulsion energy33.263867
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 PBE1PBE/aug-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 3172 3050 0.00 219.83 0.10 0.18
2 Ag 1700 1635 0.00 37.09 0.02 0.03
3 Ag 1372 1320 0.00 37.59 0.25 0.40
4 Au 1052 1012 0.00 0.00 0.00 0.00
5 B1u 3155 3033 14.03 0.00 0.00 0.00
6 B1u 1452 1396 11.32 0.00 0.00 0.00
7 B2g 985 948 0.00 3.05 0.75 0.86
8 B2u 3269 3144 18.19 0.00 0.00 0.00
9 B2u 820 789 0.10 0.00 0.00 0.00
10 B3g 3241 3117 0.00 120.91 0.75 0.86
11 B3g 1225 1178 0.00 0.10 0.75 0.86
12 B3u 984 946 102.14 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11213.7 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 10783.1 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 PBE1PBE/aug-cc-pVDZ
ABC
4.84261 1.00111 0.82961

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.666
C2 0.000 0.000 -0.666
H3 0.000 0.929 1.239
H4 0.000 -0.929 1.239
H5 0.000 -0.929 -1.239
H6 0.000 0.929 -1.239

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33261.09131.09132.11942.1194
C21.33262.11942.11941.09131.0913
H31.09132.11941.85853.09682.4772
H41.09132.11941.85852.47723.0968
H52.11941.09133.09682.47721.8585
H62.11941.09132.47723.09681.8585

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.627 C1 C2 H6 121.627
C2 C1 H3 121.627 C2 C1 H4 121.627
H3 C1 H4 116.746 H5 C2 H6 116.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.661      
2 C 0.661      
3 H -0.331      
4 H -0.331      
5 H -0.331      
6 H -0.331      


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 -15.759 0.000 0.000
y 0.000 -12.338 0.000
z 0.000 0.000 -12.321
Traceless
 xyz
x -3.430 0.000 0.000
y 0.000 1.702 0.000
z 0.000 0.000 1.728
Polar
3z2-r23.456
x2-y2-3.421
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.302 0.000 0.000
y 0.000 3.719 0.000
z 0.000 0.000 5.337


<r2> (average value of r2) Å2
<r2> 23.333
(<r2>)1/2 4.830