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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD/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 CCSD/CEP-121G*
 hartrees
Energy at 0K-14.779150
Energy at 298.15K-14.785067
HF Energy-14.473414
Nuclear repulsion energy26.387704
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 CCSD/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 3029 2857 0.00      
2 A1g 1463 1380 0.00      
3 A1g 1016 958 0.00      
4 A1u 319 301 0.00      
5 A2u 3024 2852 66.56      
6 A2u 1432 1350 1.28      
7 Eg 3093 2917 0.00      
7 Eg 3093 2917 0.00      
8 Eg 1523 1437 0.00      
8 Eg 1523 1437 0.00      
9 Eg 1237 1167 0.00      
9 Eg 1237 1167 0.00      
10 Eu 3116 2939 87.42      
10 Eu 3116 2939 87.42      
11 Eu 1531 1444 9.76      
11 Eu 1531 1444 9.76      
12 Eu 818 772 2.37      
12 Eu 818 772 2.37      

Unscaled Zero Point Vibrational Energy (zpe) 16460.6 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 15524.0 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 CCSD/CEP-121G*
ABC
2.65240 0.65637 0.65637

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.771
C2 0.000 0.000 -0.771
H3 0.000 1.025 1.166
H4 -0.888 -0.513 1.166
H5 0.888 -0.513 1.166
H6 0.000 -1.025 -1.166
H7 -0.888 0.513 -1.166
H8 0.888 0.513 -1.166

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54281.09861.09861.09862.19212.19212.1921
C21.54282.19212.19212.19211.09861.09861.0986
H31.09862.19211.77571.77573.10552.54772.5477
H41.09862.19211.77571.77572.54772.54773.1055
H51.09862.19211.77571.77572.54773.10552.5477
H62.19211.09863.10552.54772.54771.77571.7757
H72.19211.09862.54772.54773.10551.77571.7757
H82.19211.09862.54773.10552.54771.77571.7757

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.059 C1 C2 H7 111.059
C1 C2 H8 111.059 C2 C1 H3 111.059
C2 C1 H4 111.059 C2 C1 H5 111.059
H3 C1 H4 107.838 H3 C1 H5 107.838
H4 C1 H5 107.838 H6 C2 H7 107.838
H6 C2 H8 107.838 H7 C2 H8 107.838
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability