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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBEPBEultrafine/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-79.737227
Energy at 298.15K-79.743079
HF Energy-79.737227
Nuclear repulsion energy42.080833
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/cc-pVQZ
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 2964 2964 0.00      
2 A1g 1368 1368 0.00      
3 A1g 989 989 0.00      
4 A1u 297 297 0.00      
5 A2u 2966 2966 59.09      
6 A2u 1357 1357 1.38      
7 Eg 3017 3017 0.00      
7 Eg 3017 3017 0.00      
8 Eg 1451 1451 0.00      
8 Eg 1451 1451 0.00      
9 Eg 1177 1177 0.00      
9 Eg 1177 1177 0.00      
10 Eu 3042 3042 56.37      
10 Eu 3042 3042 56.37      
11 Eu 1452 1452 9.68      
11 Eu 1452 1452 9.68      
12 Eu 798 798 4.80      
12 Eu 798 798 4.80      

Unscaled Zero Point Vibrational Energy (zpe) 15907.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15907.8 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/cc-pVQZ
ABC
2.66632 0.66393 0.66393

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

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 -0.511 1.166
H5 0.886 -0.511 1.166
H6 0.000 -1.023 -1.166
H7 -0.886 0.511 -1.166
H8 0.886 0.511 -1.166

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52811.09861.09861.09862.18412.18412.1841
C21.52812.18412.18412.18411.09861.09861.0986
H31.09862.18411.77111.77113.10152.54612.5461
H41.09862.18411.77111.77112.54612.54613.1015
H51.09862.18411.77111.77112.54613.10152.5461
H62.18411.09863.10152.54612.54611.77111.7711
H72.18411.09862.54612.54613.10151.77111.7711
H82.18411.09862.54613.10152.54611.77111.7711

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.454 C1 C2 H7 111.454
C1 C2 H8 111.454 C2 C1 H3 111.454
C2 C1 H4 111.454 C2 C1 H5 111.454
H3 C1 H4 107.418 H3 C1 H5 107.418
H4 C1 H5 107.418 H6 C2 H7 107.418
H6 C2 H8 107.418 H7 C2 H8 107.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVQZ 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 -15.038 0.000 0.000
y 0.000 -15.038 0.000
z 0.000 0.000 -15.717
Traceless
 xyz
x 0.340 0.000 0.000
y 0.000 0.340 0.000
z 0.000 0.000 -0.679
Polar
3z2-r2-1.359
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 4.124 0.000 0.000
y 0.000 4.124 0.000
z 0.000 0.000 4.698


<r2> (average value of r2) Å2
<r2> 30.968
(<r2>)1/2 5.565