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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B2PLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-78.720821
Energy at 298.15K-78.726684
HF Energy-78.684595
Nuclear repulsion energy41.820660
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/STO-3G
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 3354 3354 0.00 73.46 0.02 0.04
2 A1g 1623 1623 0.00 7.93 0.74 0.85
3 A1g 1109 1109 0.00 7.99 0.37 0.54
4 A1u 300 300 0.00 0.00 0.00 0.00
5 A2u 3358 3358 6.20 0.00 0.00 0.00
6 A2u 1593 1593 0.03 0.00 0.00 0.00
7 Eg 3521 3521 0.00 50.66 0.75 0.86
7 Eg 3521 3521 0.00 50.66 0.75 0.86
8 Eg 1712 1712 0.00 31.87 0.75 0.86
8 Eg 1712 1712 0.00 31.87 0.75 0.86
9 Eg 1356 1356 0.00 5.47 0.75 0.86
9 Eg 1356 1356 0.00 5.47 0.75 0.86
10 Eu 3536 3536 5.37 0.00 0.00 0.00
10 Eu 3536 3536 5.37 0.00 0.00 0.00
11 Eu 1728 1728 4.03 0.00 0.00 0.00
11 Eu 1728 1728 4.03 0.00 0.00 0.00
12 Eu 914 914 5.24 0.00 0.00 0.00
12 Eu 914 914 5.24 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18435.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18435.9 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 B2PLYP/STO-3G
ABC
2.63514 0.65254 0.65254

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
C2 0.000 0.000 -0.775
H3 0.000 1.029 1.165
H4 -0.891 -0.514 1.165
H5 0.891 -0.514 1.165
H6 0.000 -1.029 -1.165
H7 -0.891 0.514 -1.165
H8 0.891 0.514 -1.165

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.55091.09981.09981.09982.19602.19602.1960
C21.55092.19602.19602.19601.09981.09981.0998
H31.09982.19601.78151.78153.10782.54652.5465
H41.09982.19601.78151.78152.54652.54653.1078
H51.09982.19601.78151.78152.54653.10782.5465
H62.19601.09983.10782.54652.54651.78151.7815
H72.19601.09982.54652.54653.10781.78151.7815
H82.19601.09982.54653.10782.54651.78151.7815

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.733 C1 C2 H7 110.733
C1 C2 H8 110.733 C2 C1 H3 110.733
C2 C1 H4 110.733 C2 C1 H5 110.733
H3 C1 H4 108.181 H3 C1 H5 108.181
H4 C1 H5 108.181 H6 C2 H7 108.181
H6 C2 H8 108.181 H7 C2 H8 108.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.197      
2 C -0.197      
3 H 0.066      
4 H 0.066      
5 H 0.066      
6 H 0.066      
7 H 0.066      
8 H 0.066      


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 -13.902 0.000 0.000
y 0.000 -13.902 0.000
z 0.000 0.000 -14.243
Traceless
 xyz
x 0.170 0.000 0.000
y 0.000 0.170 0.000
z 0.000 0.000 -0.341
Polar
3z2-r2-0.682
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 1.608 0.000 0.000
y 0.000 1.608 0.000
z 0.000 0.000 1.680


<r2> (average value of r2) Å2
<r2> 30.457
(<r2>)1/2 5.519