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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CISD/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 CISD/6-311+G(3df,2pd)
 hartrees
Energy at 0K-79.625013
Energy at 298.15K-79.630964
HF Energy-79.258722
Nuclear repulsion energy42.439091
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 CISD/6-311+G(3df,2pd)
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 3108 3108 0.00      
2 A1g 1476 1476 0.00      
3 A1g 1040 1040 0.00      
4 A1u 319 319 0.00      
5 A2u 3105 3105 52.40      
6 A2u 1453 1453 1.00      
7 Eg 3165 3165 0.00      
7 Eg 3165 3165 0.00      
8 Eg 1553 1553 0.00      
8 Eg 1553 1553 0.00      
9 Eg 1261 1261 0.00      
9 Eg 1261 1261 0.00      
10 Eu 3189 3189 61.01      
10 Eu 3189 3189 61.01      
11 Eu 1554 1554 8.37      
11 Eu 1554 1554 8.37      
12 Eu 846 846 2.77      
12 Eu 846 846 2.77      

Unscaled Zero Point Vibrational Energy (zpe) 16818.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16818.3 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 CISD/6-311+G(3df,2pd)
ABC
2.72003 0.67272 0.67272

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2pd)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.761
C2 0.000 0.000 -0.761
H3 0.000 1.012 1.154
H4 -0.877 -0.506 1.154
H5 0.877 -0.506 1.154
H6 0.000 -1.012 -1.154
H7 -0.877 0.506 -1.154
H8 0.877 0.506 -1.154

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52271.08581.08581.08582.16622.16622.1662
C21.52272.16622.16622.16621.08581.08581.0858
H31.08582.16621.75351.75353.06992.51982.5198
H41.08582.16621.75351.75352.51982.51983.0698
H51.08582.16621.75351.75352.51983.06982.5198
H62.16621.08583.06992.51982.51981.75351.7535
H72.16621.08582.51982.51983.06981.75351.7535
H82.16621.08582.51983.06982.51981.75351.7535

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.186 C1 C2 H7 111.186
C1 C2 H8 111.186 C2 C1 H3 111.186
C2 C1 H4 111.186 C2 C1 H5 111.186
H3 C1 H4 107.703 H3 C1 H5 107.703
H4 C1 H5 107.703 H6 C2 H7 107.703
H6 C2 H8 107.703 H7 C2 H8 107.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability