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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CISD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at CISD/aug-cc-pVDZ
 hartrees
Energy at 0K-79.556674
Energy at 298.15K-79.562618
HF Energy-79.237032
Nuclear repulsion energy42.039196
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 CISD/aug-cc-pVDZ
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 3100 3100 0.00      
2 A1g 1453 1453 0.00      
3 A1g 1039 1039 0.00      
4 A1u 322 322 0.00      
5 A2u 3093 3093 59.03      
6 A2u 1420 1420 0.28      
7 Eg 3158 3158 0.00      
7 Eg 3158 3158 0.00      
8 Eg 1521 1521 0.00      
8 Eg 1521 1521 0.00      
9 Eg 1242 1242 0.00      
9 Eg 1242 1242 0.00      
10 Eu 3180 3180 71.20      
10 Eu 3180 3180 71.20      
11 Eu 1523 1523 6.92      
11 Eu 1523 1523 6.92      
12 Eu 832 832 2.16      
12 Eu 832 832 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 16669.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16669.3 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 CISD/aug-cc-pVDZ
ABC
2.65445 0.66255 0.66255

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/aug-cc-pVDZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.766
C2 0.000 0.000 -0.766
H3 0.000 1.025 1.163
H4 -0.888 -0.512 1.163
H5 0.888 -0.512 1.163
H6 0.000 -1.025 -1.163
H7 -0.888 0.512 -1.163
H8 0.888 0.512 -1.163

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53261.09881.09881.09882.18432.18432.1843
C21.53262.18432.18432.18431.09881.09881.0988
H31.09882.18431.77501.77503.09972.54122.5412
H41.09882.18431.77501.77502.54122.54123.0997
H51.09882.18431.77501.77502.54123.09972.5412
H62.18431.09883.09972.54122.54121.77501.7750
H72.18431.09882.54122.54123.09971.77501.7750
H82.18431.09882.54123.09972.54121.77501.7750

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.146 C1 C2 H7 111.146
C1 C2 H8 111.146 C2 C1 H3 111.146
C2 C1 H4 111.146 C2 C1 H5 111.146
H3 C1 H4 107.746 H3 C1 H5 107.746
H4 C1 H5 107.746 H6 C2 H7 107.746
H6 C2 H8 107.746 H7 C2 H8 107.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability