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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCD/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at CCD/6-311+G(3df,2pd)
 hartrees
Energy at 0K-79.658947
Energy at 298.15K-79.664873
HF Energy-79.258581
Nuclear repulsion energy42.295800
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 CCD/6-311+G(3df,2pd)
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 3057 3057 0.00      
2 A1g 1448 1448 0.00      
3 A1g 1026 1026 0.00      
4 A1u 314 314 0.00      
5 A2u 3056 3056 50.07      
6 A2u 1427 1427 1.00      
7 Eg 3120 3120 0.00      
7 Eg 3120 3120 0.00      
8 Eg 1526 1526 0.00      
8 Eg 1526 1526 0.00      
9 Eg 1238 1238 0.00      
9 Eg 1238 1238 0.00      
10 Eu 3142 3142 56.35      
10 Eu 3142 3142 56.35      
11 Eu 1527 1527 8.23      
11 Eu 1527 1527 8.23      
12 Eu 832 832 2.72      
12 Eu 832 832 2.72      

Unscaled Zero Point Vibrational Energy (zpe) 16548.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16548.2 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 CCD/6-311+G(3df,2pd)
ABC
2.69893 0.66870 0.66870

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2pd)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.763
C2 0.000 0.000 -0.763
H3 0.000 1.016 1.157
H4 -0.880 -0.508 1.157
H5 0.880 -0.508 1.157
H6 0.000 -1.016 -1.157
H7 -0.880 0.508 -1.157
H8 0.880 0.508 -1.157

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52681.09001.09001.09002.17312.17312.1731
C21.52682.17312.17312.17311.09001.09001.0900
H31.09002.17311.76031.76033.08062.52812.5281
H41.09002.17311.76031.76032.52812.52813.0806
H51.09002.17311.76031.76032.52813.08062.5281
H62.17311.09003.08062.52812.52811.76031.7603
H72.17311.09002.52812.52813.08061.76031.7603
H82.17311.09002.52813.08062.52811.76031.7603

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.190 C1 C2 H7 111.190
C1 C2 H8 111.190 C2 C1 H3 111.190
C2 C1 H4 111.190 C2 C1 H5 111.190
H3 C1 H4 107.699 H3 C1 H5 107.699
H4 C1 H5 107.699 H6 C2 H7 107.699
H6 C2 H8 107.699 H7 C2 H8 107.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability