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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD(T)=FULL/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(T)=FULL/CEP-121G
 hartrees
Energy at 0K-14.661700
Energy at 298.15K-14.667595
HF Energy-14.436971
Nuclear repulsion energy26.065708
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-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 2903 2903        
2 A1g 1437 1437        
3 A1g 977 977        
4 A1u 306 306        
5 A2u 2893 2893        
6 A2u 1426 1426        
7 Eg 2973 2973        
7 Eg 2973 2973        
8 Eg 1487 1487        
8 Eg 1486 1486        
9 Eg 1225 1225        
9 Eg 1225 1225        
10 Eu 2999 2999        
10 Eu 2999 2999        
11 Eu 1501 1501        
11 Eu 1500 1500        
12 Eu 806 806        
12 Eu 806 806        

Unscaled Zero Point Vibrational Energy (zpe) 15959.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15959.7 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-121G
ABC
2.59691 0.63707 0.63707

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/CEP-121G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.785
C2 0.000 0.000 -0.785
H3 0.000 1.036 1.181
H4 -0.897 -0.518 1.181
H5 0.897 -0.518 1.181
H6 0.000 -1.036 -1.181
H7 -0.897 0.518 -1.181
H8 0.897 0.518 -1.181

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.56921.10951.10951.10952.22242.22242.2224
C21.56922.22242.22242.22241.10951.10951.1095
H31.10952.22241.79461.79463.14282.58012.5801
H41.10952.22241.79461.79462.58012.58013.1428
H51.10952.22241.79461.79462.58013.14282.5801
H62.22241.10953.14282.58012.58011.79461.7946
H72.22241.10952.58012.58013.14281.79461.7946
H82.22241.10952.58013.14282.58011.79461.7946

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.956 C1 C2 H7 110.956
C1 C2 H8 110.956 C2 C1 H3 110.956
C2 C1 H4 110.956 C2 C1 H5 110.956
H3 C1 H4 107.946 H3 C1 H5 107.946
H4 C1 H5 107.946 H6 C2 H7 107.946
H6 C2 H8 107.946 H7 C2 H8 107.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability