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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVQZ
 hartrees
Energy at 0K-79.756114
Energy at 298.15K-79.762015
HF Energy-79.756114
Nuclear repulsion energy42.349375
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 PBE1PBE/aug-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 3045 3045 0.00      
2 A1g 1416 1416 0.00      
3 A1g 1024 1024 0.00      
4 A1u 305 305 0.00      
5 A2u 3045 3045 55.85      
6 A2u 1398 1398 1.88      
7 Eg 3101 3101 0.00      
7 Eg 3101 3101 0.00      
8 Eg 1495 1495 0.00      
8 Eg 1495 1495 0.00      
9 Eg 1215 1215 0.00      
9 Eg 1215 1215 0.00      
10 Eu 3126 3126 54.61      
10 Eu 3126 3126 54.61      
11 Eu 1496 1496 10.35      
11 Eu 1496 1496 10.35      
12 Eu 820 820 4.50      
12 Eu 820 820 4.50      

Unscaled Zero Point Vibrational Energy (zpe) 16369.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16369.8 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 PBE1PBE/aug-cc-pVQZ
ABC
2.70019 0.67235 0.67235

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVQZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.759
C2 0.000 0.000 -0.759
H3 0.000 1.016 1.158
H4 -0.880 -0.508 1.158
H5 0.880 -0.508 1.158
H6 0.000 -1.016 -1.158
H7 -0.880 0.508 -1.158
H8 0.880 0.508 -1.158

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.51881.09151.09151.09152.17012.17012.1701
C21.51882.17012.17012.17011.09151.09151.0915
H31.09152.17011.75991.75993.08132.52922.5292
H41.09152.17011.75991.75992.52922.52923.0813
H51.09152.17011.75991.75992.52923.08132.5292
H62.17011.09153.08132.52922.52921.75991.7599
H72.17011.09152.52922.52923.08131.75991.7599
H82.17011.09152.52923.08132.52921.75991.7599

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.422 C1 C2 H7 111.422
C1 C2 H8 111.422 C2 C1 H3 111.422
C2 C1 H4 111.422 C2 C1 H5 111.422
H3 C1 H4 107.452 H3 C1 H5 107.452
H4 C1 H5 107.452 H6 C2 H7 107.452
H6 C2 H8 107.452 H7 C2 H8 107.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.859      
2 C -0.859      
3 H 0.286      
4 H 0.286      
5 H 0.286      
6 H 0.286      
7 H 0.286      
8 H 0.286      


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 -14.853 0.000 0.000
y 0.000 -14.853 0.000
z 0.000 0.000 -15.556
Traceless
 xyz
x 0.352 0.000 0.000
y 0.000 0.352 0.000
z 0.000 0.000 -0.703
Polar
3z2-r2-1.407
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 4.066 0.000 0.000
y 0.000 4.067 0.000
z 0.000 0.000 4.663


<r2> (average value of r2) Å2
<r2> 30.585
(<r2>)1/2 5.530