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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B1B95/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 B1B95/daug-cc-pVTZ
 hartrees
Energy at 0K-78.566524
Energy at 298.15K-78.569699
HF Energy-78.566524
Nuclear repulsion energy33.577831
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 B1B95/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 3167 3167 0.00 217.57 0.10 0.18
2 Ag 1706 1706 0.00 35.75 0.01 0.02
3 Ag 1383 1383 0.00 39.54 0.22 0.35
4 Au 1070 1070 0.00 0.00 0.00 0.00
5 B1u 3151 3151 15.57 0.00 0.00 0.00
6 B1u 1472 1472 10.08 0.00 0.00 0.00
7 B2g 989 989 0.00 2.73 0.75 0.86
8 B2u 3254 3254 19.39 0.00 0.00 0.00
9 B2u 826 826 0.06 0.00 0.00 0.00
10 B3g 3226 3226 0.00 121.10 0.75 0.86
11 B3g 1241 1241 0.00 0.10 0.75 0.86
12 B3u 983 983 96.04 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11233.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11233.4 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 B1B95/daug-cc-pVTZ
ABC
4.94212 1.01941 0.84509

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/daug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.660
C2 0.000 0.000 -0.660
H3 0.000 0.920 1.227
H4 0.000 -0.920 1.227
H5 0.000 -0.920 -1.227
H6 0.000 0.920 -1.227

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.32051.08071.08072.09992.0999
C21.32052.09992.09991.08071.0807
H31.08072.09991.83973.06782.4550
H41.08072.09991.83972.45503.0678
H52.09991.08073.06782.45501.8397
H62.09991.08072.45503.06781.8397

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.660 C1 C2 H6 121.660
C2 C1 H3 121.660 C2 C1 H4 121.660
H3 C1 H4 116.681 H5 C2 H6 116.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.325      
2 C -1.325      
3 H 0.663      
4 H 0.663      
5 H 0.663      
6 H 0.663      


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 -15.568 0.000 0.000
y 0.000 -12.331 0.000
z 0.000 0.000 -12.261
Traceless
 xyz
x -3.272 0.000 0.000
y 0.000 1.584 0.000
z 0.000 0.000 1.688
Polar
3z2-r23.376
x2-y2-3.238
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.293 0.000 0.000
y 0.000 3.743 0.000
z 0.000 0.000 5.212


<r2> (average value of r2) Å2
<r2> 23.004
(<r2>)1/2 4.796