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All results from a given calculation for C2H6 (Ethane)

using model chemistry: QCISD/daug-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 QCISD/daug-cc-pVDZ
 hartrees
Energy at 0K-79.589671
Energy at 298.15K-79.595584
HF Energy-79.236910
Nuclear repulsion energy41.877662
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 QCISD/daug-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 3037 3037 0.00      
2 A1g 1422 1422 0.00      
3 A1g 1021 1021 0.00      
4 A1u 313 313 0.00      
5 A2u 3033 3033 59.45      
6 A2u 1392 1392 0.18      
7 Eg 3097 3097 0.00      
7 Eg 3097 3097 0.00      
8 Eg 1494 1494 0.00      
8 Eg 1494 1494 0.00      
9 Eg 1217 1217 0.00      
9 Eg 1217 1217 0.00      
10 Eu 3119 3119 71.26      
10 Eu 3119 3119 71.26      
11 Eu 1496 1496 6.35      
11 Eu 1496 1496 6.35      
12 Eu 816 816 2.04      
12 Eu 816 816 2.04      

Unscaled Zero Point Vibrational Energy (zpe) 16346.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16346.5 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 QCISD/daug-cc-pVDZ
ABC
2.63261 0.65779 0.65779

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

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 1.029 1.167
H4 -0.891 -0.515 1.167
H5 0.891 -0.515 1.167
H6 0.000 -1.029 -1.167
H7 -0.891 0.515 -1.167
H8 0.891 0.515 -1.167

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53781.10341.10341.10342.19252.19252.1925
C21.53782.19252.19252.19251.10341.10341.1034
H31.10342.19251.78241.78243.11212.55112.5511
H41.10342.19251.78241.78242.55112.55113.1121
H51.10342.19251.78241.78242.55113.11212.5511
H62.19251.10343.11212.55112.55111.78241.7824
H72.19251.10342.55112.55113.11211.78241.7824
H82.19251.10342.55113.11212.55111.78241.7824

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.160 C1 C2 H7 111.160
C1 C2 H8 111.160 C2 C1 H3 111.160
C2 C1 H4 111.160 C2 C1 H5 111.160
H3 C1 H4 107.731 H3 C1 H5 107.731
H4 C1 H5 107.731 H6 C2 H7 107.731
H6 C2 H8 107.731 H7 C2 H8 107.731
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability