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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD(T)/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)/CEP-121G*
 hartrees
Energy at 0K-14.786707
Energy at 298.15K-14.792616
HF Energy-14.473269
Nuclear repulsion energy26.350541
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)/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 3012 2841        
2 A1g 1453 1370        
3 A1g 1008 951        
4 A1u 319 301        
5 A2u 3007 2836        
6 A2u 1422 1342        
7 Eg 3077 2902        
7 Eg 3077 2902        
8 Eg 1515 1429        
8 Eg 1515 1429        
9 Eg 1230 1160        
9 Eg 1230 1160        
10 Eu 3100 2923        
10 Eu 3100 2923        
11 Eu 1523 1437        
11 Eu 1523 1436        
12 Eu 812 766        
12 Eu 812 766        

Unscaled Zero Point Vibrational Energy (zpe) 16366.8 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 15435.6 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)/CEP-121G*
ABC
2.64472 0.65471 0.65471

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
C2 0.000 0.000 -0.773
H3 0.000 1.027 1.167
H4 -0.889 -0.513 1.167
H5 0.889 -0.513 1.167
H6 0.000 -1.027 -1.167
H7 -0.889 0.513 -1.167
H8 0.889 0.513 -1.167

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54501.10001.10001.10002.19472.19472.1947
C21.54502.19472.19472.19471.10001.10001.1000
H31.10002.19471.77831.77833.10902.55032.5503
H41.10002.19471.77831.77832.55032.55033.1090
H51.10002.19471.77831.77832.55033.10902.5503
H62.19471.10003.10902.55032.55031.77831.7783
H72.19471.10002.55032.55033.10901.77831.7783
H82.19471.10002.55033.10902.55031.77831.7783

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.029 C1 C2 H7 111.029
C1 C2 H8 111.029 C2 C1 H3 111.029
C2 C1 H4 111.029 C2 C1 H5 111.029
H3 C1 H4 107.869 H3 C1 H5 107.869
H4 C1 H5 107.869 H6 C2 H7 107.869
H6 C2 H8 107.869 H7 C2 H8 107.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability