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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3/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 MP3/cc-pVTZ
 hartrees
Energy at 0K-79.658716
Energy at 298.15K-79.664644
HF Energy-79.259954
Nuclear repulsion energy42.330496
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 MP3/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 3082 2911 0.00      
2 A1g 1443 1364 0.00      
3 A1g 1026 970 0.00      
4 A1u 312 295 0.00      
5 A2u 3081 2911 50.33      
6 A2u 1421 1343 1.05      
7 Eg 3142 2968 0.00      
7 Eg 3142 2968 0.00      
8 Eg 1526 1441 0.00      
8 Eg 1526 1441 0.00      
9 Eg 1237 1169 0.00      
9 Eg 1237 1169 0.00      
10 Eu 3165 2990 56.45      
10 Eu 3165 2990 56.45      
11 Eu 1527 1443 8.07      
11 Eu 1527 1443 8.07      
12 Eu 830 784 2.96      
12 Eu 830 784 2.96      

Unscaled Zero Point Vibrational Energy (zpe) 16609.6 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 15691.1 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 MP3/cc-pVTZ
ABC
2.70670 0.66924 0.66924

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.763
C2 0.000 0.000 -0.763
H3 0.000 1.015 1.157
H4 -0.879 -0.507 1.157
H5 0.879 -0.507 1.157
H6 0.000 -1.015 -1.157
H7 -0.879 0.507 -1.157
H8 0.879 0.507 -1.157

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52651.08861.08861.08862.17192.17192.1719
C21.52652.17192.17192.17191.08861.08861.0886
H31.08862.17191.75781.75783.07802.52662.5266
H41.08862.17191.75781.75782.52662.52663.0780
H51.08862.17191.75781.75782.52663.07802.5266
H62.17191.08863.07802.52662.52661.75781.7578
H72.17191.08862.52662.52663.07801.75781.7578
H82.17191.08862.52663.07802.52661.75781.7578

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.202 C1 C2 H7 111.202
C1 C2 H8 111.202 C2 C1 H3 111.202
C2 C1 H4 111.202 C2 C1 H5 111.202
H3 C1 H4 107.686 H3 C1 H5 107.686
H4 C1 H5 107.686 H6 C2 H7 107.686
H6 C2 H8 107.686 H7 C2 H8 107.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability