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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-79.666490
Energy at 298.15K-79.672408
HF Energy-79.260333
Nuclear repulsion energy42.269263
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/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1g 3053 3053 0.00      
2 A1g 1445 1445 0.00      
3 A1g 1021 1021 0.00      
4 A1u 311 311 0.00      
5 A2u 3052 3052 52.60      
6 A2u 1426 1426 0.67      
7 Eg 3109 3109 0.00      
7 Eg 3109 3109 0.00      
8 Eg 1526 1526 0.00      
8 Eg 1526 1526 0.00      
9 Eg 1239 1239 0.00      
9 Eg 1239 1239 0.00      
10 Eu 3132 3132 59.46      
10 Eu 3132 3132 59.47      
11 Eu 1528 1528 7.64      
11 Eu 831 831 2.56      
12 Eu 831 831 2.56      
12 Eu 1528 1528 7.64      

Unscaled Zero Point Vibrational Energy (zpe) 16517.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16517.6 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/daug-cc-pVTZ
ABC
2.69361 0.66816 0.66816

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.764
C2 0.000 0.000 -0.764
H3 0.000 1.017 1.158
H4 -0.881 -0.509 1.158
H5 0.881 -0.509 1.158
H6 0.000 -1.017 -1.158
H7 -0.881 0.509 -1.158
H8 0.881 0.509 -1.158

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52721.09101.09101.09102.17412.17412.1741
C21.52722.17412.17412.17411.09101.09101.0910
H31.09102.17411.76211.76213.08252.52922.5292
H41.09102.17411.76211.76212.52922.52923.0825
H51.09102.17411.76211.76212.52923.08252.5292
H62.17411.09103.08252.52922.52921.76211.7621
H72.17411.09102.52922.52923.08251.76211.7621
H82.17411.09102.52923.08252.52921.76211.7621

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.180 C1 C2 H7 111.180
C1 C2 H8 111.180 C2 C1 H3 111.180
C2 C1 H4 111.180 C2 C1 H5 111.180
H3 C1 H4 107.710 H3 C1 H5 107.710
H4 C1 H5 107.710 H6 C2 H7 107.710
H6 C2 H8 107.710 H7 C2 H8 107.710
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability