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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP2/6-311+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 MP2/6-311+G(3df,2pd)
 hartrees
Energy at 0K-79.629668
Energy at 298.15K-79.635596
HF Energy-79.258654
Nuclear repulsion energy42.367142
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 MP2/6-311+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 3075 2921 0.00      
2 A1g 1431 1360 0.00      
3 A1g 1029 977 0.00      
4 A1u 320 304 0.00      
5 A2u 3076 2922 47.39      
6 A2u 1415 1344 1.31      
7 Eg 3150 2993 0.00      
7 Eg 3150 2993 0.00      
8 Eg 1524 1448 0.00      
8 Eg 1524 1448 0.00      
9 Eg 1229 1167 0.00      
9 Eg 1229 1167 0.00      
10 Eu 3172 3014 46.16      
10 Eu 3172 3014 46.16      
11 Eu 1523 1447 8.99      
11 Eu 1523 1447 8.99      
12 Eu 829 788 3.18      
12 Eu 829 788 3.18      

Unscaled Zero Point Vibrational Energy (zpe) 16599.8 cm-1
Scaled (by 0.95) Zero Point Vibrational Energy (zpe) 15769.8 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 MP2/6-311+G(3df,2pd)
ABC
2.70686 0.67116 0.67116

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2pd)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.762
C2 0.000 0.000 -0.762
H3 0.000 1.015 1.155
H4 -0.879 -0.507 1.155
H5 0.879 -0.507 1.155
H6 0.000 -1.015 -1.155
H7 -0.879 0.507 -1.155
H8 0.879 0.507 -1.155

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52381.08841.08841.08842.16922.16922.1692
C21.52382.16922.16922.16921.08841.08841.0884
H31.08842.16921.75781.75783.07552.52372.5237
H41.08842.16921.75781.75782.52372.52373.0755
H51.08842.16921.75781.75782.52373.07552.5237
H62.16921.08843.07552.52372.52371.75781.7578
H72.16921.08842.52372.52373.07551.75781.7578
H82.16921.08842.52373.07552.52371.75781.7578

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.189 C1 C2 H7 111.189
C1 C2 H8 111.189 C2 C1 H3 111.189
C2 C1 H4 111.189 C2 C1 H5 111.189
H3 C1 H4 107.700 H3 C1 H5 107.700
H4 C1 H5 107.700 H6 C2 H7 107.700
H6 C2 H8 107.700 H7 C2 H8 107.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability