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All results from a given calculation for C2H6 (Ethane)

using model chemistry: HF/Sadlej_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 HF/Sadlej_pVTZ
 hartrees
Energy at 0K-79.244682
Energy at 298.15K-79.250669
HF Energy-79.244682
Nuclear repulsion energy42.298050
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 HF/Sadlej_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 3162 2887 0.00      
2 A1g 1539 1405 0.00      
3 A1g 1066 973 0.00      
4 A1u 314 287 0.00      
5 A2u 3154 2880 69.50      
6 A2u 1506 1375 0.19      
7 Eg 3214 2935 0.00      
7 Eg 3214 2935 0.00      
8 Eg 1594 1455 0.00      
8 Eg 1594 1455 0.00      
9 Eg 1302 1188 0.00      
9 Eg 1302 1188 0.00      
10 Eu 3241 2959 90.95      
10 Eu 3241 2959 90.95      
11 Eu 1602 1462 7.40      
11 Eu 1602 1462 7.40      
12 Eu 870 794 2.01      
12 Eu 870 794 2.01      

Unscaled Zero Point Vibrational Energy (zpe) 17193.3 cm-1
Scaled (by 0.913) Zero Point Vibrational Energy (zpe) 15697.5 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 HF/Sadlej_pVTZ
ABC
2.69239 0.67032 0.67032

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.761
C2 0.000 0.000 -0.761
H3 0.000 1.018 1.158
H4 -0.881 -0.509 1.158
H5 0.881 -0.509 1.158
H6 0.000 -1.018 -1.158
H7 -0.881 0.509 -1.158
H8 0.881 0.509 -1.158

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52291.09191.09191.09192.17212.17212.1721
C21.52292.17212.17212.17211.09191.09191.0919
H31.09192.17211.76251.76253.08242.52892.5289
H41.09192.17211.76251.76252.52892.52893.0824
H51.09192.17211.76251.76252.52893.08242.5289
H62.17211.09193.08242.52892.52891.76251.7625
H72.17211.09192.52892.52893.08241.76251.7625
H82.17211.09192.52893.08242.52891.76251.7625

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.269 C1 C2 H7 111.269
C1 C2 H8 111.269 C2 C1 H3 111.269
C2 C1 H4 111.269 C2 C1 H5 111.269
H3 C1 H4 107.615 H3 C1 H5 107.615
H4 C1 H5 107.615 H6 C2 H7 107.615
H6 C2 H8 107.615 H7 C2 H8 107.615
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Sadlej_pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.740      
2 C 1.740      
3 H -0.580      
4 H -0.580      
5 H -0.580      
6 H -0.580      
7 H -0.580      
8 H -0.580      


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 -14.949 0.000 0.000
y 0.000 -14.949 0.000
z 0.000 0.000 -15.746
Traceless
 xyz
x 0.399 0.000 0.000
y 0.000 0.399 0.000
z 0.000 0.000 -0.797
Polar
3z2-r2-1.594
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 3.885 0.000 0.000
y 0.000 3.885 0.000
z 0.000 0.000 4.367


<r2> (average value of r2) Å2
<r2> 30.713
(<r2>)1/2 5.542