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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBEPBEultrafine/SDD

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/SDD
 hartrees
Energy at 0K-79.691221
Energy at 298.15K-79.697083
HF Energy-79.691221
Nuclear repulsion energy41.756433
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/SDD
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 2982 2982 0.00      
2 A1g 1395 1395 0.00      
3 A1g 1008 1008 0.00      
4 A1u 294 294 0.00      
5 A2u 2978 2978 71.16      
6 A2u 1392 1392 19.00      
7 Eg 3059 3059 0.00      
7 Eg 3059 3059 0.00      
8 Eg 1485 1485 0.00      
8 Eg 1485 1485 0.00      
9 Eg 1193 1193 0.00      
9 Eg 1193 1193 0.00      
10 Eu 3088 3088 94.06      
10 Eu 3088 3088 94.06      
11 Eu 1486 1486 20.86      
11 Eu 1486 1486 20.86      
12 Eu 817 817 13.90      
12 Eu 817 817 13.90      

Unscaled Zero Point Vibrational Energy (zpe) 16152.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16152.8 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/SDD
ABC
2.62477 0.65287 0.65287

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.772
C2 0.000 0.000 -0.772
H3 0.000 1.031 1.172
H4 -0.893 -0.515 1.172
H5 0.893 -0.515 1.172
H6 0.000 -1.031 -1.172
H7 -0.893 0.515 -1.172
H8 0.893 0.515 -1.172

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54401.10551.10551.10552.20032.20032.2003
C21.54402.20032.20032.20031.10551.10551.1055
H31.10552.20031.78501.78503.12132.56052.5605
H41.10552.20031.78501.78502.56052.56053.1213
H51.10552.20031.78501.78502.56053.12132.5605
H62.20031.10553.12132.56052.56051.78501.7850
H72.20031.10552.56052.56053.12131.78501.7850
H82.20031.10552.56053.12132.56051.78501.7850

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.211 C1 C2 H7 111.211
C1 C2 H8 111.211 C2 C1 H3 111.211
C2 C1 H4 111.211 C2 C1 H5 111.211
H3 C1 H4 107.677 H3 C1 H5 107.677
H4 C1 H5 107.677 H6 C2 H7 107.677
H6 C2 H8 107.677 H7 C2 H8 107.677
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.638      
2 C -0.638      
3 H 0.213      
4 H 0.213      
5 H 0.213      
6 H 0.213      
7 H 0.213      
8 H 0.213      


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 -14.572 0.000 0.000
y 0.000 -14.572 0.000
z 0.000 0.000 -15.043
Traceless
 xyz
x 0.235 0.000 0.000
y 0.000 0.235 0.000
z 0.000 0.000 -0.471
Polar
3z2-r2-0.942
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 3.274 0.000 0.000
y 0.000 3.274 0.000
z 0.000 0.000 3.536


<r2> (average value of r2) Å2
<r2> 30.965
(<r2>)1/2 5.565