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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-79.631338
Energy at 298.15K-79.637283
HF Energy-79.241705
Nuclear repulsion energy42.343361
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=FULL/6-31G(2df,p)
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 3127 3127 0.00      
2 A1g 1469 1469 0.00      
3 A1g 1042 1042 0.00      
4 A1u 317 317 0.00      
5 A2u 3129 3129 39.30      
6 A2u 1447 1447 1.13      
7 Eg 3198 3198 0.00      
7 Eg 3198 3198 0.00      
8 Eg 1556 1556 0.00      
8 Eg 1556 1556 0.00      
9 Eg 1255 1255 0.00      
9 Eg 1255 1255 0.00      
10 Eu 3219 3219 43.47      
10 Eu 3219 3219 43.47      
11 Eu 1558 1558 7.34      
11 Eu 1558 1558 7.34      
12 Eu 843 843 4.29      
12 Eu 843 843 4.29      

Unscaled Zero Point Vibrational Energy (zpe) 16893.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16893.1 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=FULL/6-31G(2df,p)
ABC
2.70760 0.66986 0.66986

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

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 1.015 1.157
H4 -0.879 -0.507 1.157
H5 0.879 -0.507 1.157
H6 0.000 -1.015 -1.157
H7 -0.879 0.507 -1.157
H8 0.879 0.507 -1.157

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52551.08851.08851.08852.17112.17112.1711
C21.52552.17112.17112.17111.08851.08851.0885
H31.08852.17111.75751.75753.07742.52622.5262
H41.08852.17111.75751.75752.52622.52623.0774
H51.08852.17111.75751.75752.52623.07742.5262
H62.17111.08853.07742.52622.52621.75751.7575
H72.17111.08852.52622.52623.07741.75751.7575
H82.17111.08852.52623.07742.52621.75751.7575

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.219 C1 C2 H7 111.219
C1 C2 H8 111.219 C2 C1 H3 111.219
C2 C1 H4 111.219 C2 C1 H5 111.219
H3 C1 H4 107.668 H3 C1 H5 107.668
H4 C1 H5 107.668 H6 C2 H7 107.668
H6 C2 H8 107.668 H7 C2 H8 107.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability