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All results from a given calculation for C2H6 (Ethane)

using model chemistry: HSEh1PBE/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at HSEh1PBE/CEP-121G
 hartrees
Energy at 0K-14.886139
Energy at 298.15K-14.892057
HF Energy-14.886139
Nuclear repulsion energy26.414104
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 HSEh1PBE/CEP-121G
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 3020 3020 0.00      
2 A1g 1443 1443 0.00      
3 A1g 1033 1033 0.00      
4 A1u 298 298 0.00      
5 A2u 3012 3012 80.22      
6 A2u 1430 1430 9.25      
7 Eg 3100 3100 0.00      
7 Eg 3100 3100 0.00      
8 Eg 1528 1528 0.00      
8 Eg 1528 1528 0.00      
9 Eg 1230 1230 0.00      
9 Eg 1230 1230 0.00      
10 Eu 3128 3128 95.40      
10 Eu 3128 3128 95.44      
11 Eu 1531 1531 17.31      
11 Eu 1531 1531 17.30      
12 Eu 834 834 7.28      
12 Eu 834 834 7.28      

Unscaled Zero Point Vibrational Energy (zpe) 16468.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16468.3 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 HSEh1PBE/CEP-121G
ABC
2.66271 0.65798 0.65798

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/CEP-121G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.769
C2 0.000 0.000 -0.769
H3 0.000 1.023 1.168
H4 -0.886 -0.512 1.168
H5 0.886 -0.512 1.168
H6 0.000 -1.023 -1.168
H7 -0.886 0.512 -1.168
H8 0.886 0.512 -1.168

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53891.09801.09801.09802.19082.19082.1908
C21.53892.19082.19082.19081.09801.09801.0980
H31.09802.19081.77231.77233.10512.54962.5496
H41.09802.19081.77231.77232.54962.54963.1051
H51.09802.19081.77231.77232.54963.10512.5496
H62.19081.09803.10512.54962.54961.77231.7723
H72.19081.09802.54962.54963.10511.77231.7723
H82.19081.09802.54963.10512.54961.77231.7723

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 107.621 H3 C1 H5 107.621
H4 C1 H5 107.621 H6 C2 H7 107.621
H6 C2 H8 107.621 H7 C2 H8 107.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.500      
2 C -0.500      
3 H 0.167      
4 H 0.167      
5 H 0.167      
6 H 0.167      
7 H 0.167      
8 H 0.167      


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 -14.861 0.000 0.000
y 0.000 -14.861 0.000
z 0.000 0.000 -15.447
Traceless
 xyz
x 0.293 0.000 0.000
y 0.000 0.293 0.000
z 0.000 0.000 -0.585
Polar
3z2-r2-1.171
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 3.624 0.000 0.000
y 0.000 3.624 0.000
z 0.000 0.000 3.831


<r2> (average value of r2) Å2
<r2> 28.603
(<r2>)1/2 5.348