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All results from a given calculation for C2H6 (Ethane)

using model chemistry: CCSD=FULL/CEP-31G

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=FULL/CEP-31G
 hartrees
Energy at 0K-14.633500
Energy at 298.15K-14.639383
HF Energy-14.429883
Nuclear repulsion energy25.904755
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=FULL/CEP-31G
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 2984 2984 0.00      
2 A1g 1444 1444 0.00      
3 A1g 994 994 0.00      
4 A1u 299 299 0.00      
5 A2u 2975 2975 88.42      
6 A2u 1429 1429 3.55      
7 Eg 3045 3045 0.00      
7 Eg 3045 3045 0.00      
8 Eg 1496 1496 0.00      
8 Eg 1496 1496 0.00      
9 Eg 1227 1227 0.00      
9 Eg 1227 1227 0.00      
10 Eu 3069 3069 155.49      
10 Eu 3069 3069 155.49      
11 Eu 1500 1500 9.56      
11 Eu 1500 1500 9.56      
12 Eu 823 823 5.90      
12 Eu 823 823 5.90      

Unscaled Zero Point Vibrational Energy (zpe) 16222.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16222.5 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 CCSD=FULL/CEP-31G
ABC
2.56171 0.63062 0.63062

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/CEP-31G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.788
C2 0.000 0.000 -0.788
H3 0.000 1.043 1.188
H4 -0.903 -0.522 1.188
H5 0.903 -0.522 1.188
H6 0.000 -1.043 -1.188
H7 -0.903 0.522 -1.188
H8 0.903 0.522 -1.188

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.57611.11731.11731.11732.23472.23472.2347
C21.57612.23472.23472.23471.11731.11731.1173
H31.11732.23471.80691.80693.16232.59532.5953
H41.11732.23471.80691.80692.59532.59533.1623
H51.11732.23471.80691.80692.59533.16232.5953
H62.23471.11733.16232.59532.59531.80691.8069
H72.23471.11732.59532.59533.16231.80691.8069
H82.23471.11732.59533.16232.59531.80691.8069

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.986 C1 C2 H7 110.986
C1 C2 H8 110.986 C2 C1 H3 110.986
C2 C1 H4 110.986 C2 C1 H5 110.986
H3 C1 H4 107.915 H3 C1 H5 107.915
H4 C1 H5 107.915 H6 C2 H7 107.915
H6 C2 H8 107.915 H7 C2 H8 107.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability