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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-79.730571
Energy at 298.15K-79.736500
HF Energy-79.630650
Nuclear repulsion energy42.217039
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 B2PLYP/6-31+G**
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 3076 2930 0.00 255.07 0.01 0.02
2 A1g 1455 1386 0.00 1.88 0.40 0.57
3 A1g 1018 970 0.00 14.29 0.28 0.44
4 A1u 319 304 0.00 0.00 0.41 0.58
5 A2u 3075 2928 65.29 0.00 0.01 0.00
6 A2u 1431 1363 1.14 0.00 0.00 0.00
7 Eg 3137 2988 0.00 138.56 0.75 0.86
7 Eg 3137 2988 0.00 138.56 0.75 0.86
8 Eg 1529 1457 0.00 20.42 0.75 0.86
8 Eg 1529 1457 0.00 20.42 0.75 0.86
9 Eg 1241 1182 0.00 0.99 0.75 0.86
9 Eg 1241 1182 0.00 0.99 0.75 0.86
10 Eu 3159 3009 69.80 0.00 0.00 0.00
10 Eu 3159 3009 69.80 0.00 0.00 0.00
11 Eu 1531 1459 10.79 0.00 0.75 0.86
11 Eu 1531 1459 10.79 0.00 0.75 0.86
12 Eu 834 795 3.33 0.00 0.00 0.00
12 Eu 834 795 3.33 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16619.1 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 15828.0 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 B2PLYP/6-31+G**
ABC
2.68989 0.66633 0.66633

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

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 1.018 1.161
H4 -0.882 -0.509 1.161
H5 0.882 -0.509 1.161
H6 0.000 -1.018 -1.161
H7 -0.882 0.509 -1.161
H8 0.882 0.509 -1.161

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52871.09241.09241.09242.17752.17752.1775
C21.52872.17752.17752.17751.09241.09241.0924
H31.09242.17751.76331.76333.08752.53452.5345
H41.09242.17751.76331.76332.53452.53453.0875
H51.09242.17751.76331.76332.53453.08752.5345
H62.17751.09243.08752.53452.53451.76331.7633
H72.17751.09242.53452.53453.08751.76331.7633
H82.17751.09242.53453.08752.53451.76331.7633

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.263 C1 C2 H7 111.263
C1 C2 H8 111.263 C2 C1 H3 111.263
C2 C1 H4 111.263 C2 C1 H5 111.263
H3 C1 H4 107.622 H3 C1 H5 107.622
H4 C1 H5 107.622 H6 C2 H7 107.622
H6 C2 H8 107.622 H7 C2 H8 107.622
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.417      
2 C -0.417      
3 H 0.139      
4 H 0.139      
5 H 0.139      
6 H 0.139      
7 H 0.139      
8 H 0.139      


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 -15.092 0.000 0.000
y 0.000 -15.092 0.000
z 0.000 0.000 -15.809
Traceless
 xyz
x 0.359 0.000 0.000
y 0.000 0.359 0.000
z 0.000 0.000 -0.718
Polar
3z2-r2-1.435
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 3.575 0.000 0.000
y 0.000 3.575 0.000
z 0.000 0.000 3.950


<r2> (average value of r2) Å2
<r2> 30.885
(<r2>)1/2 5.557