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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3/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 MP3/LANL2DZ
 hartrees
Energy at 0K-79.407052
Energy at 298.15K-79.412970
HF Energy-79.203846
Nuclear repulsion energy41.529105
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/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 3015 3015 0.00      
2 A1g 1464 1464 0.00      
3 A1g 998 998 0.00      
4 A1u 314 314 0.00      
5 A2u 3008 3008 72.86      
6 A2u 1455 1455 7.69      
7 Eg 3084 3084 0.00      
7 Eg 3084 3084 0.00      
8 Eg 1528 1528 0.00      
8 Eg 1528 1528 0.00      
9 Eg 1249 1249 0.00      
9 Eg 1249 1249 0.00      
10 Eu 3108 3108 105.23      
10 Eu 3108 3108 105.23      
11 Eu 1533 1533 11.93      
11 Eu 1533 1533 11.93      
12 Eu 839 839 6.55      
12 Eu 839 839 6.55      

Unscaled Zero Point Vibrational Energy (zpe) 16467.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16467.4 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/LANL2DZ
ABC
2.61063 0.64213 0.64213

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/LANL2DZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.781
C2 0.000 0.000 -0.781
H3 0.000 1.033 1.177
H4 -0.895 -0.517 1.177
H5 0.895 -0.517 1.177
H6 0.000 -1.033 -1.177
H7 -0.895 0.517 -1.177
H8 0.895 0.517 -1.177

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.56261.10651.10651.10652.21402.21402.2140
C21.56262.21402.21402.21401.10651.10651.1065
H31.10652.21401.78991.78993.13222.57052.5705
H41.10652.21401.78991.78992.57052.57053.1322
H51.10652.21401.78991.78992.57053.13222.5705
H62.21401.10653.13222.57052.57051.78991.7899
H72.21401.10652.57052.57053.13221.78991.7899
H82.21401.10652.57053.13222.57051.78991.7899

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.944 C1 C2 H7 110.944
C1 C2 H8 110.944 C2 C1 H3 110.944
C2 C1 H4 110.944 C2 C1 H5 110.944
H3 C1 H4 107.959 H3 C1 H5 107.959
H4 C1 H5 107.959 H6 C2 H7 107.959
H6 C2 H8 107.959 H7 C2 H8 107.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability