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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP2/cc-pCVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP2/cc-pCVDZ
 hartrees
Energy at 0K-79.540945
Energy at 298.15K-79.546902
HF Energy-79.235516
Nuclear repulsion energy42.009257
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 MP2/cc-pCVDZ
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 3086 2950 0.00      
2 A1g 1432 1369 0.00      
3 A1g 1041 995 0.00      
4 A1u 334 319 0.00      
5 A2u 3084 2948 51.88      
6 A2u 1400 1338 0.13      
7 Eg 3170 3031 0.00      
7 Eg 3170 3031 0.00      
8 Eg 1506 1439 0.00      
8 Eg 1506 1439 0.00      
9 Eg 1225 1171 0.00      
9 Eg 1225 1171 0.00      
10 Eu 3191 3050 51.27      
10 Eu 3191 3050 51.27      
11 Eu 1506 1440 7.77      
11 Eu 1506 1440 7.77      
12 Eu 825 788 3.63      
12 Eu 825 788 3.63      

Unscaled Zero Point Vibrational Energy (zpe) 16610.7 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 15878.2 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 MP2/cc-pCVDZ
ABC
2.64339 0.66333 0.66333

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pCVDZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.765
C2 0.000 0.000 -0.765
H3 0.000 1.027 1.164
H4 -0.889 -0.513 1.164
H5 0.889 -0.513 1.164
H6 0.000 -1.027 -1.164
H7 -0.889 0.513 -1.164
H8 0.889 0.513 -1.164

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52931.10191.10191.10192.18502.18502.1850
C21.52932.18502.18502.18501.10191.10191.1019
H31.10192.18501.77871.77873.10452.54442.5444
H41.10192.18501.77871.77872.54442.54443.1045
H51.10192.18501.77871.77872.54443.10452.5444
H62.18501.10193.10452.54442.54441.77871.7787
H72.18501.10192.54442.54443.10451.77871.7787
H82.18501.10192.54443.10452.54441.77871.7787

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.250 C1 C2 H7 111.250
C1 C2 H8 111.250 C2 C1 H3 111.250
C2 C1 H4 111.250 C2 C1 H5 111.250
H3 C1 H4 107.636 H3 C1 H5 107.636
H4 C1 H5 107.636 H6 C2 H7 107.636
H6 C2 H8 107.636 H7 C2 H8 107.636
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability