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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-79.729542
Energy at 298.15K-79.735410
HF Energy-79.729542
Nuclear repulsion energy42.032984
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 PBEPBEultrafine/TZVP
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 2970 2936 0.00 297.23 0.01 0.01
2 A1g 1378 1362 0.00 3.50 0.69 0.81
3 A1g 989 978 0.00 9.75 0.24 0.39
4 A1u 304 301 0.00 0.00 0.00 0.00
5 A2u 2972 2938 59.37 0.00 0.00 0.00
6 A2u 1362 1346 2.51 0.00 0.00 0.00
7 Eg 3024 2990 0.00 144.91 0.75 0.86
7 Eg 3024 2990 0.00 144.90 0.75 0.86
8 Eg 1457 1441 0.00 27.79 0.75 0.86
8 Eg 1457 1441 0.00 27.79 0.75 0.86
9 Eg 1180 1166 0.00 0.55 0.75 0.86
9 Eg 1180 1166 0.00 0.55 0.75 0.86
10 Eu 3049 3014 60.46 0.00 0.00 0.00
10 Eu 3049 3014 60.46 0.00 0.00 0.00
11 Eu 1458 1441 12.25 0.00 0.00 0.00
11 Eu 1458 1441 12.25 0.00 0.00 0.00
12 Eu 804 795 5.13 0.00 0.00 0.00
12 Eu 804 795 5.13 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 15958.9 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 15776.9 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 PBEPBEultrafine/TZVP
ABC
2.65887 0.66268 0.66268

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.765
C2 0.000 0.000 -0.765
H3 0.000 1.024 1.167
H4 -0.887 -0.512 1.167
H5 0.887 -0.512 1.167
H6 0.000 -1.024 -1.167
H7 -0.887 0.512 -1.167
H8 0.887 0.512 -1.167

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52931.10021.10021.10022.18632.18632.1863
C21.52932.18632.18632.18631.10021.10021.1002
H31.10022.18631.77351.77353.10522.54892.5489
H41.10022.18631.77351.77352.54892.54893.1052
H51.10022.18631.77351.77352.54893.10522.5489
H62.18631.10023.10522.54892.54891.77351.7735
H72.18631.10022.54892.54893.10521.77351.7735
H82.18631.10022.54893.10522.54891.77351.7735

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.456 C1 C2 H7 111.456
C1 C2 H8 111.456 C2 C1 H3 111.456
C2 C1 H4 111.456 C2 C1 H5 111.456
H3 C1 H4 107.416 H3 C1 H5 107.416
H4 C1 H5 107.416 H6 C2 H7 107.416
H6 C2 H8 107.416 H7 C2 H8 107.416
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.359      
2 C -0.359      
3 H 0.120      
4 H 0.120      
5 H 0.120      
6 H 0.120      
7 H 0.120      
8 H 0.120      


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 -15.061 0.000 0.000
y 0.000 -15.061 0.000
z 0.000 0.000 -15.724
Traceless
 xyz
x 0.332 0.000 0.000
y 0.000 0.332 0.000
z 0.000 0.000 -0.663
Polar
3z2-r2-1.326
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 3.915 0.000 0.000
y 0.000 3.915 0.000
z 0.000 0.000 4.308


<r2> (average value of r2) Å2
<r2> 31.025
(<r2>)1/2 5.570