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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP4/6-311+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 MP4/6-311+G(3df,2pd)
 hartrees
Energy at 0K-79.673711
Energy at 298.15K-79.679620
HF Energy-79.258454
Nuclear repulsion energy42.212407
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 MP4/6-311+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 3034 3034        
2 A1g 1426 1426        
3 A1g 1013 1013        
4 A1u 313 313        
5 A2u 3033 3033        
6 A2u 1409 1409        
7 Eg 3100 3100        
7 Eg 3099 3099        
8 Eg 1512 1512        
8 Eg 1512 1512        
9 Eg 1222 1222        
9 Eg 1222 1222        
10 Eu 3122 3122        
10 Eu 3122 3122        
11 Eu 1512 1512        
11 Eu 1511 1511        
12 Eu 822 822        
12 Eu 822 822        

Unscaled Zero Point Vibrational Energy (zpe) 16402.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16402.9 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 MP4/6-311+G(3df,2pd)
ABC
2.68850 0.66604 0.66604

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+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
C11.53011.09201.09201.09202.17722.17722.1772
C21.53012.17722.17722.17721.09201.09201.0920
H31.09202.17721.76371.76373.08612.53242.5324
H41.09202.17721.76371.76372.53242.53243.0861
H51.09202.17721.76371.76372.53243.08612.5324
H62.17721.09203.08612.53242.53241.76371.7637
H72.17721.09202.53242.53243.08611.76371.7637
H82.17721.09202.53243.08612.53241.76371.7637

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.165 C1 C2 H7 111.165
C1 C2 H8 111.165 C2 C1 H3 111.165
C2 C1 H4 111.165 C2 C1 H5 111.165
H3 C1 H4 107.726 H3 C1 H5 107.726
H4 C1 H5 107.726 H6 C2 H7 107.726
H6 C2 H8 107.726 H7 C2 H8 107.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability