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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-79.664119
Energy at 298.15K-79.670055
HF Energy-79.257805
Nuclear repulsion energy42.439623
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=FULL/6-311+G(3df,2p)
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 3090 2913 0.00 288.36 0.01 0.01
2 A1g 1437 1355 0.00 0.44 0.11 0.20
3 A1g 1036 977 0.00 13.11 0.18 0.30
4 A1u 320 301 0.00 0.00 0.00 0.00
5 A2u 3090 2913 47.87 0.00 0.01 0.01
6 A2u 1421 1339 1.77 0.00 0.00 0.00
7 Eg 3163 2981 0.00 108.43 0.75 0.86
7 Eg 3163 2981 0.00 108.43 0.75 0.86
8 Eg 1530 1443 0.00 8.92 0.75 0.86
8 Eg 1530 1443 0.00 8.92 0.75 0.86
9 Eg 1231 1160 0.00 0.07 0.75 0.86
9 Eg 1231 1160 0.00 0.07 0.75 0.86
10 Eu 3185 3002 45.56 0.00 0.00 0.00
10 Eu 3185 3002 45.56 0.00 0.72 0.84
11 Eu 1530 1442 9.82 0.00 0.00 0.00
11 Eu 1530 1442 9.82 0.00 0.75 0.86
12 Eu 831 783 3.48 0.00 0.00 0.00
12 Eu 831 783 3.48 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16665.3 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 15710.4 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=FULL/6-311+G(3df,2p)
ABC
2.71553 0.67387 0.67387

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.760
C2 0.000 0.000 -0.760
H3 0.000 1.013 1.154
H4 -0.877 -0.507 1.154
H5 0.877 -0.507 1.154
H6 0.000 -1.013 -1.154
H7 -0.877 0.507 -1.154
H8 0.877 0.507 -1.154

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.51971.08721.08721.08722.16562.16562.1656
C21.51972.16562.16562.16561.08721.08721.0872
H31.08722.16561.75491.75493.07162.52082.5208
H41.08722.16561.75491.75492.52082.52083.0716
H51.08722.16561.75491.75492.52083.07162.5208
H62.16561.08723.07162.52082.52081.75491.7549
H72.16561.08722.52082.52083.07161.75491.7549
H82.16561.08722.52083.07162.52081.75491.7549

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.262 C1 C2 H7 111.262
C1 C2 H8 111.262 C2 C1 H3 111.262
C2 C1 H4 111.262 C2 C1 H5 111.262
H3 C1 H4 107.623 H3 C1 H5 107.623
H4 C1 H5 107.623 H6 C2 H7 107.623
H6 C2 H8 107.623 H7 C2 H8 107.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability