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All results from a given calculation for C2H6 (Ethane)

using model chemistry: QCISD(T)/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 QCISD(T)/6-311G**
 hartrees
Energy at 0K-79.615922
Energy at 298.15K-79.621857
HF Energy-79.251176
Nuclear repulsion energy42.047240
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 QCISD(T)/6-311G**
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 3039 3039        
2 A1g 1444 1444        
3 A1g 1017 1017        
4 A1u 326 326        
5 A2u 3036 3036        
6 A2u 1415 1415        
7 Eg 3098 3098        
7 Eg 3098 3098        
8 Eg 1511 1511        
8 Eg 1511 1511        
9 Eg 1235 1235        
9 Eg 1235 1235        
10 Eu 3121 3121        
10 Eu 3121 3121        
11 Eu 1516 1516        
11 Eu 1515 1515        
12 Eu 826 826        
12 Eu 826 826        

Unscaled Zero Point Vibrational Energy (zpe) 16443.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16443.8 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 QCISD(T)/6-311G**
ABC
2.65935 0.66173 0.66173

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.768
C2 0.000 0.000 -0.768
H3 0.000 1.024 1.162
H4 -0.887 -0.512 1.162
H5 0.887 -0.512 1.162
H6 0.000 -1.024 -1.162
H7 -0.887 0.512 -1.162
H8 0.887 0.512 -1.162

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53501.09731.09731.09732.18452.18452.1845
C21.53502.18452.18452.18451.09731.09731.0973
H31.09732.18451.77341.77343.09782.53992.5399
H41.09732.18451.77341.77342.53992.53993.0978
H51.09732.18451.77341.77342.53993.09782.5399
H62.18451.09733.09782.53992.53991.77341.7734
H72.18451.09732.53992.53993.09781.77341.7734
H82.18451.09732.53993.09782.53991.77341.7734

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.082 C1 C2 H7 111.082
C1 C2 H8 111.082 C2 C1 H3 111.082
C2 C1 H4 111.082 C2 C1 H5 111.082
H3 C1 H4 107.813 H3 C1 H5 107.813
H4 C1 H5 107.813 H6 C2 H7 107.813
H6 C2 H8 107.813 H7 C2 H8 107.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability