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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD(T)=FULL/cc-pCVTZ

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(T)=FULL/cc-pCVTZ
 hartrees
Energy at 0K-79.776180
Energy at 298.15K-79.782097
HF Energy-79.260250
Nuclear repulsion energy42.294705
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(T)=FULL/cc-pCVTZ
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 3046 2943        
2 A1g 1429 1381        
3 A1g 1016 982        
4 A1u 308 297        
5 A2u 3044 2942        
6 A2u 1409 1362        
7 Eg 3105 3000        
7 Eg 3104 3000        
8 Eg 1513 1462        
8 Eg 1513 1462        
9 Eg 1227 1185        
9 Eg 1226 1185        
10 Eu 3127 3022        
10 Eu 3127 3022        
11 Eu 1515 1464        
11 Eu 1514 1463        
12 Eu 823 795        
12 Eu 823 795        

Unscaled Zero Point Vibrational Energy (zpe) 16434.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 15880.3 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 CCSD(T)=FULL/cc-pCVTZ
ABC
2.69795 0.66879 0.66879

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pCVTZ

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 1.017 1.158
H4 -0.880 -0.508 1.158
H5 0.880 -0.508 1.158
H6 0.000 -1.017 -1.158
H7 -0.880 0.508 -1.158
H8 0.880 0.508 -1.158

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52631.09041.09041.09042.17322.17322.1732
C21.52632.17322.17322.17321.09041.09041.0904
H31.09042.17321.76071.76073.08132.52872.5287
H41.09042.17321.76071.76072.52872.52873.0813
H51.09042.17321.76071.76072.52873.08132.5287
H62.17321.09043.08132.52872.52871.76071.7607
H72.17321.09042.52872.52873.08131.76071.7607
H82.17321.09042.52873.08132.52871.76071.7607

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.214 C1 C2 H7 111.214
C1 C2 H8 111.214 C2 C1 H3 111.214
C2 C1 H4 111.214 C2 C1 H5 111.214
H3 C1 H4 107.674 H3 C1 H5 107.674
H4 C1 H5 107.674 H6 C2 H7 107.674
H6 C2 H8 107.674 H7 C2 H8 107.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability