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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP3/6-311G**
 hartrees
Energy at 0K-79.601230
Energy at 298.15K-79.607181
HF Energy-79.251458
Nuclear repulsion energy42.154175
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 MP3/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1g 3083 3083 0.00      
2 A1g 1460 1460 0.00      
3 A1g 1032 1032 0.00      
4 A1u 328 328 0.00      
5 A2u 3082 3082 53.81      
6 A2u 1431 1431 0.81      
7 Eg 3145 3145 0.00      
7 Eg 3145 3145 0.00      
8 Eg 1527 1527 0.00      
8 Eg 1527 1527 0.00      
9 Eg 1247 1247 0.00      
9 Eg 1247 1247 0.00      
10 Eu 3168 3168 67.71      
10 Eu 3168 3168 67.71      
11 Eu 1530 1530 7.89      
11 Eu 1530 1530 7.89      
12 Eu 835 835 2.54      
12 Eu 835 835 2.54      

Unscaled Zero Point Vibrational Energy (zpe) 16659.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16659.7 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 MP3/6-311G**
ABC
2.67678 0.66459 0.66459

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311G**

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.766
C2 0.000 0.000 -0.766
H3 0.000 1.021 1.160
H4 -0.884 -0.510 1.160
H5 0.884 -0.510 1.160
H6 0.000 -1.021 -1.160
H7 -0.884 0.510 -1.160
H8 0.884 0.510 -1.160

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53211.09391.09391.09392.17952.17952.1795
C21.53212.17952.17952.17951.09391.09391.0939
H31.09392.17951.76761.76763.08972.53412.5341
H41.09392.17951.76761.76762.53412.53413.0897
H51.09392.17951.76761.76762.53413.08972.5341
H62.17951.09393.08972.53412.53411.76761.7676
H72.17951.09392.53412.53413.08971.76761.7676
H82.17951.09392.53413.08972.53411.76761.7676

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.098 C1 C2 H7 111.098
C1 C2 H8 111.098 C2 C1 H3 111.098
C2 C1 H4 111.098 C2 C1 H5 111.098
H3 C1 H4 107.797 H3 C1 H5 107.797
H4 C1 H5 107.797 H6 C2 H7 107.797
H6 C2 H8 107.797 H7 C2 H8 107.797
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability