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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-79.250953
Energy at 298.15K-79.256903
HF Energy-79.188536
Nuclear repulsion energy42.014651
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/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 3079 3079 0.00 177.08 0.02 0.03
2 A1g 1482 1482 0.00 8.83 0.72 0.84
3 A1g 977 977 0.00 8.79 0.29 0.44
4 A1u 313 313 0.00 0.00 0.00 0.00
5 A2u 3079 3079 43.49 0.00 0.02 0.03
6 A2u 1491 1491 5.16 0.00 0.00 0.00
7 Eg 3129 3129 0.00 115.60 0.75 0.86
7 Eg 3129 3129 0.00 115.60 0.75 0.86
8 Eg 1594 1594 0.00 45.95 0.75 0.86
8 Eg 1594 1594 0.00 45.95 0.75 0.86
9 Eg 1278 1278 0.00 4.23 0.75 0.86
9 Eg 1278 1278 0.00 4.23 0.75 0.86
10 Eu 3154 3154 57.38 0.00 0.00 0.00
10 Eu 3154 3154 57.38 0.00 0.00 0.00
11 Eu 1595 1595 10.14 0.00 0.00 0.00
11 Eu 1595 1595 10.14 0.00 0.00 0.00
12 Eu 872 872 7.25 0.00 0.00 0.00
12 Eu 872 872 7.25 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16832.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16832.1 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/3-21G*
ABC
2.66772 0.65739 0.65739

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
C2 0.000 0.000 -0.773
H3 0.000 1.022 1.161
H4 -0.885 -0.511 1.161
H5 0.885 -0.511 1.161
H6 0.000 -1.022 -1.161
H7 -0.885 0.511 -1.161
H8 0.885 0.511 -1.161

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54561.09351.09351.09352.18732.18732.1873
C21.54562.18732.18732.18731.09351.09351.0935
H31.09352.18731.77061.77063.09382.53702.5370
H41.09352.18731.77061.77062.53702.53703.0938
H51.09352.18731.77061.77062.53703.09382.5370
H62.18731.09353.09382.53702.53701.77061.7706
H72.18731.09352.53702.53703.09381.77061.7706
H82.18731.09352.53703.09382.53701.77061.7706

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.793 C1 C2 H7 110.793
C1 C2 H8 110.793 C2 C1 H3 110.793
C2 C1 H4 110.793 C2 C1 H5 110.793
H3 C1 H4 108.118 H3 C1 H5 108.118
H4 C1 H5 108.118 H6 C2 H7 108.118
H6 C2 H8 108.118 H7 C2 H8 108.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.559      
2 C -0.559      
3 H 0.186      
4 H 0.186      
5 H 0.186      
6 H 0.186      
7 H 0.186      
8 H 0.186      


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 -14.913 0.000 0.000
y 0.000 -14.913 0.000
z 0.000 0.000 -15.341
Traceless
 xyz
x 0.214 0.000 0.000
y 0.000 0.214 0.000
z 0.000 0.000 -0.428
Polar
3z2-r2-0.856
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 3.107 0.000 0.000
y 0.000 3.107 0.000
z 0.000 0.000 3.295


<r2> (average value of r2) Å2
<r2> 30.927
(<r2>)1/2 5.561