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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: PBEPBE/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 PBEPBE/daug-cc-pVDZ
 hartrees
Energy at 0K-78.478528
Energy at 298.15K-78.481685
HF Energy-78.478528
Nuclear repulsion energy33.034637
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 PBEPBE/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 3080 3080 0.00 242.52 0.10 0.18
2 Ag 1637 1637 0.00 33.96 0.01 0.02
3 Ag 1332 1332 0.00 37.63 0.22 0.36
4 Au 1051 1051 0.00 0.00 0.00 0.00
5 B1u 3068 3068 17.87 0.00 0.00 0.00
6 B1u 1411 1411 9.06 0.00 0.00 0.00
7 B2g 990 990 0.00 1.48 0.75 0.86
8 B2u 3179 3179 21.54 0.00 0.00 0.00
9 B2u 799 799 0.15 0.00 0.00 0.00
10 B3g 3152 3152 0.00 133.72 0.75 0.86
11 B3g 1191 1191 0.00 0.02 0.75 0.86
12 B3u 960 960 95.25 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 10925.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10925.5 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 PBEPBE/daug-cc-pVDZ
ABC
4.78793 0.98632 0.81784

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.671
C2 0.000 0.000 -0.671
H3 0.000 0.935 1.248
H4 0.000 -0.935 1.248
H5 0.000 -0.935 -1.248
H6 0.000 0.935 -1.248

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.34241.09821.09822.13472.1347
C21.34242.13472.13471.09821.0982
H31.09822.13471.86913.11832.4961
H41.09822.13471.86912.49613.1183
H52.13471.09823.11832.49611.8691
H62.13471.09822.49613.11831.8691

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.684 C1 C2 H6 121.684
C2 C1 H3 121.684 C2 C1 H4 121.684
H3 C1 H4 116.632 H5 C2 H6 116.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.412      
2 C 1.412      
3 H -0.706      
4 H -0.706      
5 H -0.706      
6 H -0.706      


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 -15.790 0.000 0.000
y 0.000 -12.550 0.000
z 0.000 0.000 -12.550
Traceless
 xyz
x -3.241 0.000 0.000
y 0.000 1.620 0.000
z 0.000 0.000 1.620
Polar
3z2-r23.240
x2-y2-3.241
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.482 0.000 0.000
y 0.000 3.986 0.000
z 0.000 0.000 5.490


<r2> (average value of r2) Å2
<r2> 23.643
(<r2>)1/2 4.862