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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP2=FULL/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-14.622678
Energy at 298.15K-14.628609
HF Energy-14.438051
Nuclear repulsion energy26.193933
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/CEP-121G
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 2973 2803 0.00      
2 A1g 1460 1376 0.00      
3 A1g 998 941 0.00      
4 A1u 316 298 0.00      
5 A2u 2965 2795 80.22      
6 A2u 1449 1366 2.56      
7 Eg 3056 2881 0.00      
7 Eg 3056 2881 0.00      
8 Eg 1517 1430 0.00      
8 Eg 1517 1430 0.00      
9 Eg 1247 1176 0.00      
9 Eg 1247 1176 0.00      
10 Eu 3081 2905 105.90      
10 Eu 3081 2905 105.90      
11 Eu 1530 1442 10.44      
11 Eu 1530 1442 10.44      
12 Eu 822 775 3.35      
12 Eu 822 775 3.35      

Unscaled Zero Point Vibrational Energy (zpe) 16333.4 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 15397.5 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/CEP-121G
ABC
2.62763 0.64263 0.64263

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/CEP-121G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.781
C2 0.000 0.000 -0.781
H3 0.000 1.030 1.177
H4 -0.892 -0.515 1.177
H5 0.892 -0.515 1.177
H6 0.000 -1.030 -1.177
H7 -0.892 0.515 -1.177
H8 0.892 0.515 -1.177

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.56281.10321.10321.10322.21232.21232.2123
C21.56282.21232.21232.21231.10321.10321.1032
H31.10322.21231.78411.78413.12742.56862.5686
H41.10322.21231.78411.78412.56862.56863.1274
H51.10322.21231.78411.78412.56863.12742.5686
H62.21231.10323.12742.56862.56861.78411.7841
H72.21231.10322.56862.56863.12741.78411.7841
H82.21231.10322.56863.12742.56861.78411.7841

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.986 C1 C2 H7 110.986
C1 C2 H8 110.986 C2 C1 H3 110.986
C2 C1 H4 110.986 C2 C1 H5 110.986
H3 C1 H4 107.915 H3 C1 H5 107.915
H4 C1 H5 107.915 H6 C2 H7 107.915
H6 C2 H8 107.915 H7 C2 H8 107.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability