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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCD/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at CCD/LANL2DZ
 hartrees
Energy at 0K-79.416066
Energy at 298.15K-79.421970
HF Energy-79.203326
Nuclear repulsion energy41.450050
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 CCD/LANL2DZ
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 2983 2813 0.00      
2 A1g 1451 1369 0.00      
3 A1g 991 935 0.00      
4 A1u 309 291 0.00      
5 A2u 2977 2807 70.91      
6 A2u 1445 1363 7.67      
7 Eg 3053 2879 0.00      
7 Eg 3053 2879 0.00      
8 Eg 1516 1430 0.00      
8 Eg 1516 1430 0.00      
9 Eg 1239 1169 0.00      
9 Eg 1239 1169 0.00      
10 Eu 3076 2901 103.09      
10 Eu 3076 2901 103.09      
11 Eu 1520 1434 11.53      
11 Eu 1520 1434 11.53      
12 Eu 834 786 6.36      
12 Eu 834 786 6.36      

Unscaled Zero Point Vibrational Energy (zpe) 16316.6 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 15388.2 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 CCD/LANL2DZ
ABC
2.59919 0.64007 0.64007

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/LANL2DZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
C2 0.000 0.000 -0.782
H3 0.000 1.036 1.179
H4 -0.897 -0.518 1.179
H5 0.897 -0.518 1.179
H6 0.000 -1.036 -1.179
H7 -0.897 0.518 -1.179
H8 0.897 0.518 -1.179

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.56451.10911.10911.10912.21812.21812.2181
C21.56452.21812.21812.21811.10911.10911.1091
H31.10912.21811.79381.79383.13892.57582.5758
H41.10912.21811.79381.79382.57582.57583.1389
H51.10912.21811.79381.79382.57583.13892.5758
H62.21811.10913.13892.57582.57581.79381.7938
H72.21811.10912.57582.57583.13891.79381.7938
H82.21811.10912.57583.13892.57581.79381.7938

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.972 C1 C2 H7 110.972
C1 C2 H8 110.972 C2 C1 H3 110.972
C2 C1 H4 110.972 C2 C1 H5 110.972
H3 C1 H4 107.930 H3 C1 H5 107.930
H4 C1 H5 107.930 H6 C2 H7 107.930
H6 C2 H8 107.930 H7 C2 H8 107.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability