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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CID/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 CID/CEP-121G*
 hartrees
Energy at 0K-14.752962
Energy at 298.15K-14.758902
HF Energy-14.473764
Nuclear repulsion energy26.484936
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 CID/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 3091 2856 0.00      
2 A1g 1489 1376 0.00      
3 A1g 1032 953 0.00      
4 A1u 321 297 0.00      
5 A2u 3084 2849 67.10      
6 A2u 1456 1345 1.36      
7 Eg 3156 2916 0.00      
7 Eg 3156 2916 0.00      
8 Eg 1551 1433 0.00      
8 Eg 1551 1433 0.00      
9 Eg 1259 1163 0.00      
9 Eg 1259 1163 0.00      
10 Eu 3179 2937 87.66      
10 Eu 3179 2937 87.66      
11 Eu 1558 1439 10.18      
11 Eu 1558 1439 10.18      
12 Eu 833 770 2.48      
12 Eu 833 770 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 16771.7 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 15497.1 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 CID/CEP-121G*
ABC
2.67617 0.66028 0.66028

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.769
C2 0.000 0.000 -0.769
H3 0.000 1.021 1.163
H4 -0.884 -0.510 1.163
H5 0.884 -0.510 1.163
H6 0.000 -1.021 -1.163
H7 -0.884 0.510 -1.163
H8 0.884 0.510 -1.163

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53881.09381.09381.09382.18512.18512.1851
C21.53882.18512.18512.18511.09381.09381.0938
H31.09382.18511.76781.76783.09432.53962.5396
H41.09382.18511.76781.76782.53962.53963.0943
H51.09382.18511.76781.76782.53963.09432.5396
H62.18511.09383.09432.53962.53961.76781.7678
H72.18511.09382.53962.53963.09431.76781.7678
H82.18511.09382.53963.09432.53961.76781.7678

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.076 C1 C2 H7 111.076
C1 C2 H8 111.076 C2 C1 H3 111.076
C2 C1 H4 111.076 C2 C1 H5 111.076
H3 C1 H4 107.820 H3 C1 H5 107.820
H4 C1 H5 107.820 H6 C2 H7 107.820
H6 C2 H8 107.820 H7 C2 H8 107.820
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability