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All results from a given calculation for C2H6 (Ethane)

using model chemistry: QCISD(TQ)/6-311+G(3df,2pd)

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(TQ)/6-311+G(3df,2pd)
 hartrees
Energy at 0K-79.674361
Energy at 298.15K 
HF Energy-79.258450
Nuclear repulsion energy42.210539
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(TQ)/6-311+G(3df,2pd)
Rotational Constants (cm-1) from geometry optimized at QCISD(TQ)/6-311+G(3df,2pd)
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/6-311+G(3df,2pd)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.765
C2 0.000 0.000 -0.765
H3 0.000 1.018 1.159
H4 -0.882 -0.509 1.159
H5 0.882 -0.509 1.159
H6 0.000 -1.018 -1.159
H7 -0.882 0.509 -1.159
H8 0.882 0.509 -1.159

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53021.09201.09201.09202.17722.17722.1772
C21.53022.17722.17722.17721.09201.09201.0920
H31.09202.17721.76391.76393.08612.53232.5323
H41.09202.17721.76391.76392.53232.53233.0861
H51.09202.17721.76391.76392.53233.08612.5323
H62.17721.09203.08612.53232.53231.76391.7639
H72.17721.09202.53232.53233.08611.76391.7639
H82.17721.09202.53233.08612.53231.76391.7639

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.158 C1 C2 H7 111.158
C1 C2 H8 111.158 C2 C1 H3 111.158
C2 C1 H4 111.158 C2 C1 H5 111.158
H3 C1 H4 107.733 H3 C1 H5 107.733
H4 C1 H5 107.733 H6 C2 H7 107.733
H6 C2 H8 107.733 H7 C2 H8 107.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability