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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBEPBE/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at PBEPBE/daug-cc-pVTZ
 hartrees
Energy at 0K-79.731362
Energy at 298.15K-79.737202
HF Energy-79.731362
Nuclear repulsion energy42.065443
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-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 A1g 2965 2965 0.00 375.40 0.00 0.00
2 A1g 1366 1366 0.00 0.15 0.09 0.16
3 A1g 987 987 0.00 10.59 0.17 0.29
4 A1u 295 295 0.00 0.00 0.00 0.00
5 A2u 2967 2967 59.13 0.00 0.00 0.00
6 A2u 1356 1356 1.17 0.00 0.00 0.00
7 Eg 3016 3016 0.00 131.43 0.75 0.86
7 Eg 3016 3016 0.00 131.22 0.75 0.86
8 Eg 1450 1450 0.00 8.45 0.75 0.86
8 Eg 1450 1450 0.00 8.55 0.75 0.86
9 Eg 1176 1176 0.00 0.13 0.75 0.86
9 Eg 1176 1176 0.00 0.13 0.75 0.86
10 Eu 3041 3041 55.66 0.00 0.00 0.00
10 Eu 3041 3041 55.66 0.00 0.00 0.00
11 Eu 1451 1451 9.51 0.00 0.00 0.00
11 Eu 1451 1451 9.51 0.00 0.00 0.00
12 Eu 796 796 4.44 0.00 0.00 0.00
12 Eu 796 796 4.44 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 15897.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15897.4 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 PBEPBE/daug-cc-pVTZ
ABC
2.66346 0.66356 0.66356

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.764
C2 0.000 0.000 -0.764
H3 0.000 1.023 1.166
H4 -0.886 -0.512 1.166
H5 0.886 -0.512 1.166
H6 0.000 -1.023 -1.166
H7 -0.886 0.512 -1.166
H8 0.886 0.512 -1.166

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52851.09911.09911.09912.18472.18472.1847
C21.52852.18472.18472.18471.09911.09911.0991
H31.09912.18471.77201.77203.10252.54672.5467
H41.09912.18471.77201.77202.54672.54673.1025
H51.09912.18471.77201.77202.54673.10252.5467
H62.18471.09913.10252.54672.54671.77201.7720
H72.18471.09912.54672.54673.10251.77201.7720
H82.18471.09912.54673.10252.54671.77201.7720

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.442 C1 C2 H7 111.442
C1 C2 H8 111.442 C2 C1 H3 111.442
C2 C1 H4 111.442 C2 C1 H5 111.442
H3 C1 H4 107.431 H3 C1 H5 107.431
H4 C1 H5 107.431 H6 C2 H7 107.431
H6 C2 H8 107.431 H7 C2 H8 107.431
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.560      
2 C -0.560      
3 H 0.187      
4 H 0.187      
5 H 0.187      
6 H 0.187      
7 H 0.187      
8 H 0.187      


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 -15.068 0.000 0.000
y 0.000 -15.068 0.000
z 0.000 0.000 -15.770
Traceless
 xyz
x 0.351 0.000 0.000
y 0.000 0.351 0.000
z 0.000 0.000 -0.701
Polar
3z2-r2-1.403
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 4.265 0.000 0.000
y 0.000 4.264 0.000
z 0.000 0.000 4.924


<r2> (average value of r2) Å2
<r2> 31.005
(<r2>)1/2 5.568