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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBEPBEultrafine/6-311G*

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/6-311G*
 hartrees
Energy at 0K-79.715600
Energy at 298.15K-79.721467
HF Energy-79.715600
Nuclear repulsion energy41.999454
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/6-311G*
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 2969 2938 0.00 247.07 0.01 0.01
2 A1g 1389 1374 0.00 4.90 0.75 0.86
3 A1g 996 986 0.00 8.04 0.28 0.44
4 A1u 304 301 0.00 0.00 0.00 0.00
5 A2u 2970 2939 68.69 0.00 0.00 0.00
6 A2u 1371 1357 3.46 0.00 0.00 0.00
7 Eg 3021 2990 0.00 152.32 0.75 0.86
7 Eg 3021 2990 0.00 152.31 0.75 0.86
8 Eg 1476 1461 0.00 27.66 0.75 0.86
8 Eg 1476 1461 0.00 27.66 0.75 0.86
9 Eg 1186 1173 0.00 0.77 0.75 0.86
9 Eg 1186 1173 0.00 0.77 0.75 0.86
10 Eu 3047 3015 76.15 0.00 0.00 0.00
10 Eu 3047 3015 76.15 0.00 0.00 0.00
11 Eu 1477 1462 13.78 0.00 0.00 0.00
11 Eu 1477 1462 13.78 0.00 0.00 0.00
12 Eu 806 797 5.90 0.00 0.00 0.00
12 Eu 806 797 5.90 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16011.4 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 15844.9 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/6-311G*
ABC
2.65703 0.66161 0.66161

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

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 1.170
H4 -0.887 -0.512 1.170
H5 0.887 -0.512 1.170
H6 0.000 -1.024 -1.170
H7 -0.887 0.512 -1.170
H8 0.887 0.512 -1.170

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52951.10141.10141.10142.18872.18872.1887
C21.52952.18872.18872.18871.10141.10141.1014
H31.10142.18871.77421.77423.10932.55352.5535
H41.10142.18871.77421.77422.55352.55353.1093
H51.10142.18871.77421.77422.55353.10932.5535
H62.18871.10143.10932.55352.55351.77421.7742
H72.18871.10142.55352.55353.10931.77421.7742
H82.18871.10142.55353.10932.55351.77421.7742

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.561 C1 C2 H7 111.561
C1 C2 H8 111.561 C2 C1 H3 111.561
C2 C1 H4 111.561 C2 C1 H5 111.561
H3 C1 H4 107.303 H3 C1 H5 107.303
H4 C1 H5 107.303 H6 C2 H7 107.303
H6 C2 H8 107.303 H7 C2 H8 107.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.641      
2 C -0.641      
3 H 0.214      
4 H 0.214      
5 H 0.214      
6 H 0.214      
7 H 0.214      
8 H 0.214      


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 -15.042 0.000 0.000
y 0.000 -15.042 0.000
z 0.000 0.000 -15.722
Traceless
 xyz
x 0.340 0.000 0.000
y 0.000 0.340 0.000
z 0.000 0.000 -0.681
Polar
3z2-r2-1.362
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 3.650 0.000 0.000
y 0.000 3.650 0.000
z 0.000 0.000 4.045


<r2> (average value of r2) Å2
<r2> 31.056
(<r2>)1/2 5.573