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All results from a given calculation for C2H6 (Ethane)

using model chemistry: mPW1PW91/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at mPW1PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-79.814652
Energy at 298.15K-79.820558
HF Energy-79.814652
Nuclear repulsion energy42.181002
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 mPW1PW91/daug-cc-pVDZ
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 3055 3055 0.00 354.85 0.00 0.01
2 A1g 1408 1408 0.00 0.01 0.68 0.81
3 A1g 1031 1031 0.00 11.94 0.17 0.29
4 A1u 310 310 0.00 0.00 0.00 0.00
5 A2u 3054 3054 62.34 0.00 0.00 0.00
6 A2u 1377 1377 1.53 0.00 0.00 0.00
7 Eg 3120 3120 0.00 124.38 0.75 0.86
7 Eg 3120 3120 0.00 124.71 0.75 0.86
8 Eg 1480 1480 0.00 8.71 0.75 0.86
8 Eg 1480 1480 0.00 8.69 0.75 0.86
9 Eg 1206 1206 0.00 0.07 0.75 0.86
9 Eg 1206 1206 0.00 0.07 0.75 0.86
10 Eu 3144 3144 63.97 0.00 0.00 0.00
10 Eu 3144 3144 63.97 0.00 0.00 0.00
11 Eu 1480 1480 9.70 0.00 0.00 0.00
11 Eu 1480 1480 9.71 0.00 0.00 0.00
12 Eu 816 816 4.17 0.00 0.00 0.00
12 Eu 816 816 4.17 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16363.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16363.3 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 mPW1PW91/daug-cc-pVDZ
ABC
2.66951 0.66843 0.66843

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVDZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.761
C2 0.000 0.000 -0.761
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
C11.52261.09731.09731.09732.17712.17712.1771
C21.52262.17712.17712.17711.09731.09731.0973
H31.09732.17711.77001.77003.09352.53712.5371
H41.09732.17711.77001.77002.53712.53713.0935
H51.09732.17711.77001.77002.53713.09352.5371
H62.17711.09733.09352.53712.53711.77001.7700
H72.17711.09732.53712.53713.09351.77001.7700
H82.17711.09732.53713.09352.53711.77001.7700

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.365 C1 C2 H7 111.365
C1 C2 H8 111.365 C2 C1 H3 111.365
C2 C1 H4 111.365 C2 C1 H5 111.365
H3 C1 H4 107.513 H3 C1 H5 107.513
H4 C1 H5 107.513 H6 C2 H7 107.513
H6 C2 H8 107.513 H7 C2 H8 107.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.653      
2 C 0.653      
3 H -0.218      
4 H -0.218      
5 H -0.218      
6 H -0.218      
7 H -0.218      
8 H -0.218      


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 -14.882 0.000 0.000
y 0.000 -14.882 0.000
z 0.000 0.000 -15.587
Traceless
 xyz
x 0.352 0.000 0.000
y 0.000 0.352 0.000
z 0.000 0.000 -0.705
Polar
3z2-r2-1.409
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 4.096 0.000 0.000
y 0.000 4.096 0.000
z 0.000 0.000 4.680


<r2> (average value of r2) Å2
<r2> 30.752
(<r2>)1/2 5.545