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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-78.573162
Energy at 298.15K-78.576340
HF Energy-78.573162
Nuclear repulsion energy33.289611
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 mPW1PW91/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 3176 3043 0.00 216.69 0.10 0.19
2 Ag 1702 1631 0.00 36.89 0.02 0.03
3 Ag 1377 1319 0.00 38.05 0.24 0.39
4 Au 1055 1011 0.00 0.00 0.00 0.00
5 B1u 3159 3027 15.58 0.00 0.00 0.00
6 B1u 1459 1398 11.08 0.00 0.00 0.00
7 B2g 989 947 0.00 3.26 0.75 0.86
8 B2u 3273 3136 20.02 0.00 0.00 0.00
9 B2u 824 790 0.09 0.00 0.00 0.00
10 B3g 3245 3110 0.00 120.20 0.75 0.86
11 B3g 1230 1179 0.00 0.12 0.75 0.86
12 B3u 987 946 101.99 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11237.3 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 10768.7 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 mPW1PW91/aug-cc-pVDZ
ABC
4.85602 1.00211 0.83068

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/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 0.928 1.238
H4 0.000 -0.928 1.238
H5 0.000 -0.928 -1.238
H6 0.000 0.928 -1.238

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33191.09011.09012.11802.1180
C21.33192.11802.11801.09011.0901
H31.09012.11801.85593.09422.4758
H41.09012.11801.85592.47583.0942
H52.11801.09013.09422.47581.8559
H62.11801.09012.47583.09421.8559

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.647 C1 C2 H6 121.647
C2 C1 H3 121.647 C2 C1 H4 121.647
H3 C1 H4 116.706 H5 C2 H6 116.706
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.643      
2 C 0.643      
3 H -0.322      
4 H -0.322      
5 H -0.322      
6 H -0.322      


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 -15.710 0.000 0.000
y 0.000 -12.306 0.000
z 0.000 0.000 -12.273
Traceless
 xyz
x -3.421 0.000 0.000
y 0.000 1.686 0.000
z 0.000 0.000 1.735
Polar
3z2-r23.470
x2-y2-3.404
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 3.696 0.000
z 0.000 0.000 5.317


<r2> (average value of r2) Å2
<r2> 23.285
(<r2>)1/2 4.825