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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-79.618369
Energy at 298.15K-79.624296
HF Energy-79.241559
Nuclear repulsion energy42.201157
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/6-31G(2df,p)
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 2922 0.00      
2 A1g 1458 1379 0.00      
3 A1g 1027 971 0.00      
4 A1u 314 297 0.00      
5 A2u 3090 2922 43.00      
6 A2u 1436 1358 0.60      
7 Eg 3154 2982 0.00      
7 Eg 3154 2982 0.00      
8 Eg 1537 1453 0.00      
8 Eg 1537 1453 0.00      
9 Eg 1244 1176 0.00      
9 Eg 1244 1176 0.00      
10 Eu 3176 3003 50.29      
10 Eu 3176 3003 50.29      
11 Eu 1540 1456 6.37      
11 Eu 1540 1456 6.37      
12 Eu 832 787 3.65      
12 Eu 832 787 3.65      

Unscaled Zero Point Vibrational Energy (zpe) 16690.4 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 15780.8 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 CCSD/6-31G(2df,p)
ABC
2.68748 0.66566 0.66566

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.765
C2 0.000 0.000 -0.765
H3 0.000 1.018 1.160
H4 -0.882 -0.509 1.160
H5 0.882 -0.509 1.160
H6 0.000 -1.018 -1.160
H7 -0.882 0.509 -1.160
H8 0.882 0.509 -1.160

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53021.09251.09251.09252.17812.17812.1781
C21.53022.17812.17812.17811.09251.09251.0925
H31.09252.17811.76411.76413.08772.53412.5341
H41.09252.17811.76411.76412.53412.53413.0877
H51.09252.17811.76411.76412.53413.08772.5341
H62.17811.09253.08772.53412.53411.76411.7641
H72.17811.09252.53412.53413.08771.76411.7641
H82.17811.09252.53413.08772.53411.76411.7641

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.205 C1 C2 H7 111.205
C1 C2 H8 111.205 C2 C1 H3 111.205
C2 C1 H4 111.205 C2 C1 H5 111.205
H3 C1 H4 107.683 H3 C1 H5 107.683
H4 C1 H5 107.683 H6 C2 H7 107.683
H6 C2 H8 107.683 H7 C2 H8 107.683
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability