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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B3LYPultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B3LYPultrafine/3-21G
 hartrees
Energy at 0K-79.400644
Energy at 298.15K-79.406580
HF Energy-79.400644
Nuclear repulsion energy41.980673
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 B3LYPultrafine/3-21G
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 3051 2944 0.00 183.84 0.01 0.02
2 A1g 1461 1410 0.00 9.72 0.71 0.83
3 A1g 974 940 0.00 7.89 0.29 0.45
4 A1u 307 296 0.00 0.00 0.00 0.00
5 A2u 3052 2945 46.98 0.00 0.00 0.00
6 A2u 1472 1420 5.61 0.00 0.00 0.00
7 Eg 3097 2989 0.00 119.08 0.75 0.86
7 Eg 3097 2989 0.00 119.08 0.75 0.86
8 Eg 1573 1518 0.00 46.34 0.75 0.86
8 Eg 1573 1518 0.00 46.34 0.75 0.86
9 Eg 1258 1214 0.00 3.87 0.75 0.86
9 Eg 1258 1214 0.00 3.87 0.75 0.86
10 Eu 3125 3015 60.10 0.00 0.00 0.00
10 Eu 3125 3015 60.10 0.00 0.00 0.00
11 Eu 1575 1519 11.17 0.00 0.00 0.00
11 Eu 1575 1519 11.17 0.00 0.00 0.00
12 Eu 863 833 8.21 0.00 0.00 0.00
12 Eu 863 833 8.21 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16649.2 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 16064.8 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 B3LYPultrafine/3-21G
ABC
2.66019 0.65720 0.65720

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

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 1.024 1.162
H4 -0.887 -0.512 1.162
H5 0.887 -0.512 1.162
H6 0.000 -1.024 -1.162
H7 -0.887 0.512 -1.162
H8 0.887 0.512 -1.162

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54441.09551.09551.09552.18882.18882.1888
C21.54442.18882.18882.18881.09551.09551.0955
H31.09552.18881.77311.77313.09782.54022.5402
H41.09552.18881.77311.77312.54022.54023.0978
H51.09552.18881.77311.77312.54023.09782.5402
H62.18881.09553.09782.54022.54021.77311.7731
H72.18881.09552.54022.54023.09781.77311.7731
H82.18881.09552.54023.09782.54021.77311.7731

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.864 C1 C2 H7 110.864
C1 C2 H8 110.864 C2 C1 H3 110.864
C2 C1 H4 110.864 C2 C1 H5 110.864
H3 C1 H4 108.044 H3 C1 H5 108.044
H4 C1 H5 108.044 H6 C2 H7 108.044
H6 C2 H8 108.044 H7 C2 H8 108.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.563      
2 C -0.563      
3 H 0.188      
4 H 0.188      
5 H 0.188      
6 H 0.188      
7 H 0.188      
8 H 0.188      


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 -14.775 0.000 0.000
y 0.000 -14.775 0.000
z 0.000 0.000 -15.170
Traceless
 xyz
x 0.197 0.000 0.000
y 0.000 0.197 0.000
z 0.000 0.000 -0.394
Polar
3z2-r2-0.789
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 3.129 0.000 0.000
y 0.000 3.129 0.000
z 0.000 0.000 3.340


<r2> (average value of r2) Å2
<r2> 30.861
(<r2>)1/2 5.555