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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3/TZVP

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/TZVP
 hartrees
Energy at 0K-79.605151
Energy at 298.15K-79.611103
HF Energy-79.257636
Nuclear repulsion energy42.304965
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/TZVP
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 3095 2894 0.00      
2 A1g 1469 1374 0.00      
3 A1g 1027 961 0.00      
4 A1u 327 306 0.00      
5 A2u 3093 2893 55.21      
6 A2u 1441 1348 0.52      
7 Eg 3156 2952 0.00      
7 Eg 3156 2952 0.00      
8 Eg 1525 1426 0.00      
8 Eg 1525 1426 0.00      
9 Eg 1253 1171 0.00      
9 Eg 1253 1171 0.00      
10 Eu 3179 2973 68.88      
10 Eu 3179 2973 68.89      
11 Eu 1528 1429 7.95      
11 Eu 1528 1429 7.95      
12 Eu 838 783 1.83      
12 Eu 838 783 1.83      

Unscaled Zero Point Vibrational Energy (zpe) 16704.7 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 15622.3 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 MP3/TZVP
ABC
2.69771 0.66922 0.66922

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.763
C2 0.000 0.000 -0.763
H3 0.000 1.017 1.156
H4 -0.880 -0.508 1.156
H5 0.880 -0.508 1.156
H6 0.000 -1.017 -1.156
H7 -0.880 0.508 -1.156
H8 0.880 0.508 -1.156

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52641.08991.08991.08992.17212.17212.1721
C21.52642.17212.17212.17211.08991.08991.0899
H31.08992.17211.76071.76073.07932.52622.5262
H41.08992.17211.76071.76072.52622.52623.0793
H51.08992.17211.76071.76072.52623.07932.5262
H62.17211.08993.07932.52622.52621.76071.7607
H72.17211.08992.52622.52623.07931.76071.7607
H82.17211.08992.52623.07932.52621.76071.7607

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.143 C1 C2 H7 111.143
C1 C2 H8 111.143 C2 C1 H3 111.143
C2 C1 H4 111.143 C2 C1 H5 111.143
H3 C1 H4 107.749 H3 C1 H5 107.749
H4 C1 H5 107.749 H6 C2 H7 107.749
H6 C2 H8 107.749 H7 C2 H8 107.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability