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All results from a given calculation for C2H6 (Ethane)

using model chemistry: HSEh1PBE/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-79.716482
Energy at 298.15K-79.722393
HF Energy-79.716482
Nuclear repulsion energy42.065222
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/LANL2DZ
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 3068 3068 0.00      
2 A1g 1448 1448 0.00      
3 A1g 1042 1042 0.00      
4 A1u 302 302 0.00      
5 A2u 3063 3063 74.09      
6 A2u 1441 1441 19.71      
7 Eg 3148 3148 0.00      
7 Eg 3148 3148 0.00      
8 Eg 1535 1535 0.00      
8 Eg 1535 1535 0.00      
9 Eg 1237 1237 0.00      
9 Eg 1237 1237 0.00      
10 Eu 3175 3175 95.74      
10 Eu 3175 3175 95.80      
11 Eu 1535 1535 20.87      
11 Eu 1535 1535 20.85      
12 Eu 845 845 12.36      
12 Eu 845 845 12.36      

Unscaled Zero Point Vibrational Energy (zpe) 16655.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16655.6 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/LANL2DZ
ABC
2.66720 0.66189 0.66189

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/LANL2DZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.767
C2 0.000 0.000 -0.767
H3 0.000 1.022 1.164
H4 -0.885 -0.511 1.164
H5 0.885 -0.511 1.164
H6 0.000 -1.022 -1.164
H7 -0.885 0.511 -1.164
H8 0.885 0.511 -1.164

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53411.09661.09661.09662.18462.18462.1846
C21.53412.18462.18462.18461.09661.09661.0966
H31.09662.18461.77081.77083.09782.54192.5419
H41.09662.18461.77081.77082.54192.54193.0978
H51.09662.18461.77081.77082.54193.09782.5419
H62.18461.09663.09782.54192.54191.77081.7708
H72.18461.09662.54192.54193.09781.77081.7708
H82.18461.09662.54193.09782.54191.77081.7708

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.199 C1 C2 H7 111.199
C1 C2 H8 111.199 C2 C1 H3 111.199
C2 C1 H4 111.199 C2 C1 H5 111.199
H3 C1 H4 107.690 H3 C1 H5 107.690
H4 C1 H5 107.690 H6 C2 H7 107.690
H6 C2 H8 107.690 H7 C2 H8 107.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.629      
2 C -0.629      
3 H 0.210      
4 H 0.210      
5 H 0.210      
6 H 0.210      
7 H 0.210      
8 H 0.210      


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 -14.575 0.000 0.000
y 0.000 -14.575 0.000
z 0.000 0.000 -15.070
Traceless
 xyz
x 0.248 0.000 0.000
y 0.000 0.248 0.000
z 0.000 0.000 -0.496
Polar
3z2-r2-0.992
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 3.204 0.000 0.000
y 0.000 3.204 0.000
z 0.000 0.000 3.415


<r2> (average value of r2) Å2
<r2> 30.662
(<r2>)1/2 5.537