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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-14.646931
Energy at 298.15K-14.652849
HF Energy-14.437733
Nuclear repulsion energy26.152711
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/CEP-121G
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 2954 2954 0.00      
2 A1g 1457 1457 0.00      
3 A1g 995 995 0.00      
4 A1u 312 312 0.00      
5 A2u 2944 2944 78.53      
6 A2u 1445 1445 2.63      
7 Eg 3025 3025 0.00      
7 Eg 3025 3025 0.00      
8 Eg 1504 1504 0.00      
8 Eg 1504 1504 0.00      
9 Eg 1240 1240 0.00      
9 Eg 1240 1240 0.00      
10 Eu 3051 3051 109.22      
10 Eu 3051 3051 109.23      
11 Eu 1519 1519 10.17      
11 Eu 1519 1519 10.17      
12 Eu 817 817 2.98      
12 Eu 817 817 2.98      

Unscaled Zero Point Vibrational Energy (zpe) 16208.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16208.8 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/CEP-121G
ABC
2.61648 0.64113 0.64113

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/CEP-121G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
C2 0.000 0.000 -0.782
H3 0.000 1.032 1.178
H4 -0.894 -0.516 1.178
H5 0.894 -0.516 1.178
H6 0.000 -1.032 -1.178
H7 -0.894 0.516 -1.178
H8 0.894 0.516 -1.178

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.56451.10531.10531.10532.21512.21512.2151
C21.56452.21512.21512.21511.10531.10531.1053
H31.10532.21511.78791.78793.13192.57152.5715
H41.10532.21511.78791.78792.57152.57153.1319
H51.10532.21511.78791.78792.57153.13192.5715
H62.21511.10533.13192.57152.57151.78791.7879
H72.21511.10532.57152.57153.13191.78791.7879
H82.21511.10532.57153.13192.57151.78791.7879

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.957 C1 C2 H7 110.957
C1 C2 H8 110.957 C2 C1 H3 110.957
C2 C1 H4 110.957 C2 C1 H5 110.957
H3 C1 H4 107.945 H3 C1 H5 107.945
H4 C1 H5 107.945 H6 C2 H7 107.945
H6 C2 H8 107.945 H7 C2 H8 107.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability