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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP4/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP4/6-31+G**
 hartrees
Energy at 0K-79.586808
Energy at 298.15K-79.592752
HF Energy-79.238603
Nuclear repulsion energy42.215670
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 MP4/6-31+G**
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 3093 2919        
2 A1g 1472 1389        
3 A1g 1028 970        
4 A1u 326 308        
5 A2u 3090 2916        
6 A2u 1445 1363        
7 Eg 3163 2985        
7 Eg 3163 2985        
8 Eg 1539 1452        
8 Eg 1538 1451        
9 Eg 1253 1183        
9 Eg 1253 1183        
10 Eu 3184 3005        
10 Eu 3184 3005        
11 Eu 1543 1456        
11 Eu 1542 1455        
12 Eu 834 787        
12 Eu 834 787        

Unscaled Zero Point Vibrational Energy (zpe) 16741.2 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 15800.3 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 MP4/6-31+G**
ABC
2.68665 0.66615 0.66615

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31+G**

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 1.019 1.159
H4 -0.882 -0.509 1.159
H5 0.882 -0.509 1.159
H6 0.000 -1.019 -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
C11.53021.09201.09201.09202.17692.17692.1769
C21.53022.17692.17692.17691.09201.09201.0920
H31.09202.17691.76441.76443.08562.53142.5314
H41.09202.17691.76441.76442.53142.53143.0856
H51.09202.17691.76441.76442.53143.08562.5314
H62.17691.09203.08562.53142.53141.76441.7644
H72.17691.09202.53142.53143.08561.76441.7644
H82.17691.09202.53143.08562.53141.76441.7644

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.127 C1 C2 H7 111.127
C1 C2 H8 111.127 C2 C1 H3 111.127
C2 C1 H4 111.127 C2 C1 H5 111.127
H3 C1 H4 107.766 H3 C1 H5 107.766
H4 C1 H5 107.766 H6 C2 H7 107.766
H6 C2 H8 107.766 H7 C2 H8 107.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability