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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP2=FULL/daug-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 MP2=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-79.674220
Energy at 298.15K-79.680141
HF Energy-79.260486
Nuclear repulsion energy42.461769
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/daug-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 3091 3091 0.00 340.45 0.00 0.01
2 A1g 1437 1437 0.00 0.19 0.18 0.30
3 A1g 1032 1032 0.00 12.91 0.17 0.29
4 A1u 312 312 0.00 0.00 0.42 0.60
5 A2u 3091 3091 47.87 0.00 0.00 0.01
6 A2u 1422 1422 1.47 0.00 0.65 0.78
7 Eg 3146 3146 0.00 107.47 0.75 0.86
7 Eg 3146 3146 0.00 107.47 0.75 0.86
8 Eg 1533 1533 0.00 7.74 0.75 0.86
8 Eg 1533 1533 0.00 7.74 0.75 0.86
9 Eg 1236 1236 0.00 0.05 0.75 0.86
9 Eg 1236 1236 0.00 0.05 0.75 0.86
10 Eu 3169 3169 45.18 0.00 0.59 0.74
10 Eu 3169 3169 45.18 0.00 0.39 0.56
11 Eu 1532 1532 8.98 0.00 0.75 0.86
11 Eu 1532 1532 8.98 0.00 0.75 0.86
12 Eu 831 831 3.30 0.00 0.41 0.58
12 Eu 831 831 3.30 0.00 0.46 0.63

Unscaled Zero Point Vibrational Energy (zpe) 16639.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16639.9 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 MP2=FULL/daug-cc-pVTZ
ABC
2.71440 0.67489 0.67489

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/daug-cc-pVTZ

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 1.152
H4 -0.878 -0.507 1.152
H5 0.878 -0.507 1.152
H6 0.000 -1.013 -1.152
H7 -0.878 0.507 -1.152
H8 0.878 0.507 -1.152

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.51921.08671.08671.08672.16362.16362.1636
C21.51922.16362.16362.16361.08671.08671.0867
H31.08672.16361.75531.75533.06872.51702.5170
H41.08672.16361.75531.75532.51702.51703.0687
H51.08672.16361.75531.75532.51703.06872.5170
H62.16361.08673.06872.51702.51701.75531.7553
H72.16361.08672.51702.51703.06871.75531.7553
H82.16361.08672.51703.06872.51701.75531.7553

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.166 C1 C2 H7 111.166
C1 C2 H8 111.166 C2 C1 H3 111.166
C2 C1 H4 111.166 C2 C1 H5 111.166
H3 C1 H4 107.724 H3 C1 H5 107.724
H4 C1 H5 107.724 H6 C2 H7 107.724
H6 C2 H8 107.724 H7 C2 H8 107.724
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability