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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCD/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-14.749283
Energy at 298.15K-14.755180
HF Energy-14.464458
Nuclear repulsion energy26.168242
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/CEP-31G*
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 3055 2881 0.00      
2 A1g 1457 1374 0.00      
3 A1g 1028 969 0.00      
4 A1u 310 293 0.00      
5 A2u 3050 2877 69.70      
6 A2u 1417 1337 1.70      
7 Eg 3118 2940 0.00      
7 Eg 3118 2940 0.00      
8 Eg 1510 1425 0.00      
8 Eg 1510 1425 0.00      
9 Eg 1229 1159 0.00      
9 Eg 1229 1159 0.00      
10 Eu 3139 2960 105.53      
10 Eu 3139 2960 105.53      
11 Eu 1511 1425 9.78      
11 Eu 1511 1425 9.78      
12 Eu 823 776 5.37      
12 Eu 823 776 5.37      

Unscaled Zero Point Vibrational Energy (zpe) 16487.9 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 15549.8 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 CCD/CEP-31G*
ABC
2.59975 0.64730 0.64730

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/CEP-31G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
C2 0.000 0.000 -0.776
H3 0.000 1.036 1.174
H4 -0.897 -0.518 1.174
H5 0.897 -0.518 1.174
H6 0.000 -1.036 -1.174
H7 -0.897 0.518 -1.174
H8 0.897 0.518 -1.174

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.55281.10921.10921.10922.20822.20822.2082
C21.55282.20822.20822.20821.10921.10921.1092
H31.10922.20821.79361.79363.13082.56612.5661
H41.10922.20821.79361.79362.56612.56613.1308
H51.10922.20821.79361.79362.56613.13082.5661
H62.20821.10923.13082.56612.56611.79361.7936
H72.20821.10922.56612.56613.13081.79361.7936
H82.20821.10922.56613.13082.56611.79361.7936

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.002 C1 C2 H7 111.002
C1 C2 H8 111.002 C2 C1 H3 111.002
C2 C1 H4 111.002 C2 C1 H5 111.002
H3 C1 H4 107.898 H3 C1 H5 107.898
H4 C1 H5 107.898 H6 C2 H7 107.898
H6 C2 H8 107.898 H7 C2 H8 107.898
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability