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All results from a given calculation for C2H6 (Ethane)

using model chemistry: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-79.835337
Energy at 298.15K-79.841244
HF Energy-79.835337
Nuclear repulsion energy42.361651
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 mPW1PW91/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 3049 3049 0.00 301.36 0.00 0.01
2 A1g 1424 1424 0.00 0.06 0.07 0.13
3 A1g 1021 1021 0.00 11.67 0.18 0.30
4 A1u 306 306 0.00 0.00 0.00 0.00
5 A2u 3048 3048 56.56 0.00 0.00 0.00
6 A2u 1406 1406 2.06 0.00 0.00 0.00
7 Eg 3103 3103 0.00 120.30 0.75 0.86
7 Eg 3103 3103 0.00 120.28 0.75 0.86
8 Eg 1504 1504 0.00 9.07 0.75 0.86
8 Eg 1504 1504 0.00 9.07 0.75 0.86
9 Eg 1219 1219 0.00 0.06 0.75 0.86
9 Eg 1219 1219 0.00 0.06 0.75 0.86
10 Eu 3128 3128 57.77 0.00 0.00 0.00
10 Eu 3128 3128 57.77 0.00 0.00 0.00
11 Eu 1505 1505 10.77 0.00 0.00 0.00
11 Eu 1505 1505 10.77 0.00 0.00 0.00
12 Eu 823 823 4.42 0.00 0.00 0.00
12 Eu 823 823 4.42 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16411.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16411.1 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 mPW1PW91/6-311+G(3df,2p)
ABC
2.70488 0.67213 0.67213

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.760
C2 0.000 0.000 -0.760
H3 0.000 1.015 1.158
H4 -0.879 -0.508 1.158
H5 0.879 -0.508 1.158
H6 0.000 -1.015 -1.158
H7 -0.879 0.508 -1.158
H8 0.879 0.508 -1.158

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.51971.09051.09051.09052.16992.16992.1699
C21.51972.16992.16992.16991.09051.09051.0905
H31.09052.16991.75841.75843.07992.52862.5286
H41.09052.16991.75841.75842.52862.52863.0799
H51.09052.16991.75841.75842.52863.07992.5286
H62.16991.09053.07992.52862.52861.75841.7584
H72.16991.09052.52862.52863.07991.75841.7584
H82.16991.09052.52863.07992.52861.75841.7584

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.409 C1 C2 H7 111.409
C1 C2 H8 111.409 C2 C1 H3 111.409
C2 C1 H4 111.409 C2 C1 H5 111.409
H3 C1 H4 107.466 H3 C1 H5 107.466
H4 C1 H5 107.466 H6 C2 H7 107.466
H6 C2 H8 107.466 H7 C2 H8 107.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.357      
2 C -0.357      
3 H 0.119      
4 H 0.119      
5 H 0.119      
6 H 0.119      
7 H 0.119      
8 H 0.119      


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 -14.835 0.000 0.000
y 0.000 -14.835 0.000
z 0.000 0.000 -15.461
Traceless
 xyz
x 0.313 0.000 0.000
y 0.000 0.313 0.000
z 0.000 0.000 -0.626
Polar
3z2-r2-1.252
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.939 0.000 0.000
y 0.000 3.939 0.000
z 0.000 0.000 4.487


<r2> (average value of r2) Å2
<r2> 30.553
(<r2>)1/2 5.527