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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/CEP-31G*
 hartrees
Energy at 0K-14.756546
Energy at 298.15K-14.762436
HF Energy-14.464237
Nuclear repulsion energy26.141051
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(T)=FULL/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 3036 3036        
2 A1g 1448 1448        
3 A1g 1020 1020        
4 A1u 310 310        
5 A2u 3031 3031        
6 A2u 1409 1409        
7 Eg 3095 3095        
7 Eg 3095 3095        
8 Eg 1503 1503        
8 Eg 1502 1502        
9 Eg 1222 1222        
9 Eg 1222 1222        
10 Eu 3117 3117        
10 Eu 3117 3117        
11 Eu 1504 1504        
11 Eu 1504 1504        
12 Eu 817 817        
12 Eu 817 817        

Unscaled Zero Point Vibrational Energy (zpe) 16385.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16385.9 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(T)=FULL/CEP-31G*
ABC
2.59231 0.64590 0.64590

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/CEP-31G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.777
C2 0.000 0.000 -0.777
H3 0.000 1.037 1.175
H4 -0.898 -0.519 1.175
H5 0.898 -0.519 1.175
H6 0.000 -1.037 -1.175
H7 -0.898 0.519 -1.175
H8 0.898 0.519 -1.175

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.55471.11061.11061.11062.21052.21052.2105
C21.55472.21052.21052.21051.11061.11061.1106
H31.11062.21051.79621.79623.13412.56832.5683
H41.11062.21051.79621.79622.56832.56833.1341
H51.11062.21051.79621.79622.56833.13412.5683
H62.21051.11063.13412.56832.56831.79621.7962
H72.21051.11062.56832.56833.13411.79621.7962
H82.21051.11062.56833.13412.56831.79621.7962

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.973 C1 C2 H7 110.973
C1 C2 H8 110.973 C2 C1 H3 110.973
C2 C1 H4 110.973 C2 C1 H5 110.973
H3 C1 H4 107.929 H3 C1 H5 107.929
H4 C1 H5 107.929 H6 C2 H7 107.929
H6 C2 H8 107.929 H7 C2 H8 107.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability