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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CISD/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-79.630344
Energy at 298.15K-79.636290
HF Energy-79.260510
Nuclear repulsion energy42.428173
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/daug-cc-pVTZ
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 3109 3109 0.00      
2 A1g 1475 1475 0.00      
3 A1g 1038 1038 0.00      
4 A1u 317 317 0.00      
5 A2u 3108 3108 53.50      
6 A2u 1454 1454 0.82      
7 Eg 3165 3165 0.00      
7 Eg 3165 3165 0.00      
8 Eg 1555 1555 0.00      
8 Eg 1555 1555 0.00      
9 Eg 1264 1264 0.00      
9 Eg 1264 1264 0.00      
10 Eu 3189 3189 61.01      
10 Eu 3189 3189 61.01      
11 Eu 1557 1557 8.10      
11 Eu 1557 1557 8.11      
12 Eu 846 846 2.71      
12 Eu 846 846 2.71      

Unscaled Zero Point Vibrational Energy (zpe) 16825.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16825.7 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/daug-cc-pVTZ
ABC
2.71736 0.67258 0.67258

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/daug-cc-pVTZ

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 1.013 1.154
H4 -0.877 -0.506 1.154
H5 0.877 -0.506 1.154
H6 0.000 -1.013 -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
C11.52271.08631.08631.08632.16652.16652.1665
C21.52272.16652.16652.16651.08631.08631.0863
H31.08632.16651.75441.75443.07072.52022.5202
H41.08632.16651.75441.75442.52022.52023.0707
H51.08632.16651.75441.75442.52023.07072.5202
H62.16651.08633.07072.52022.52021.75441.7544
H72.16651.08632.52022.52023.07071.75441.7544
H82.16651.08632.52023.07072.52021.75441.7544

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.181 C1 C2 H7 111.181
C1 C2 H8 111.181 C2 C1 H3 111.181
C2 C1 H4 111.181 C2 C1 H5 111.181
H3 C1 H4 107.709 H3 C1 H5 107.709
H4 C1 H5 107.708 H6 C2 H7 107.709
H6 C2 H8 107.709 H7 C2 H8 107.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability