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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP2=FULL/SDD

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=FULL/SDD
 hartrees
Energy at 0K-79.410066
Energy at 298.15K-79.415994
HF Energy-79.204584
Nuclear repulsion energy41.591050
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=FULL/SDD
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 3027 2854 0.00      
2 A1g 1465 1381 0.00      
3 A1g 1000 943 0.00      
4 A1u 318 300 0.00      
5 A2u 3022 2849 71.47      
6 A2u 1459 1375 7.91      
7 Eg 3111 2933 0.00      
7 Eg 3111 2933 0.00      
8 Eg 1540 1452 0.00      
8 Eg 1540 1452 0.00      
9 Eg 1254 1182 0.00      
9 Eg 1254 1182 0.00      
10 Eu 3134 2955 97.81      
10 Eu 3134 2955 97.81      
11 Eu 1543 1455 12.38      
11 Eu 1543 1455 12.38      
12 Eu 844 795 7.43      
12 Eu 844 795 7.43      

Unscaled Zero Point Vibrational Energy (zpe) 16572.0 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 15622.4 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=FULL/SDD
ABC
2.62058 0.64375 0.64375

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/SDD

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
C2 0.000 0.000 -0.780
H3 0.000 1.031 1.176
H4 -0.893 -0.516 1.176
H5 0.893 -0.516 1.176
H6 0.000 -1.031 -1.176
H7 -0.893 0.516 -1.176
H8 0.893 0.516 -1.176

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.56071.10451.10451.10452.21122.21122.2112
C21.56072.21122.21122.21121.10451.10451.1045
H31.10452.21121.78651.78653.12782.56742.5674
H41.10452.21121.78651.78652.56742.56743.1278
H51.10452.21121.78651.78652.56743.12782.5674
H62.21121.10453.12782.56742.56741.78651.7865
H72.21121.10452.56742.56743.12781.78651.7865
H82.21121.10452.56743.12782.56741.78651.7865

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.966 C1 C2 H7 110.966
C1 C2 H8 110.966 C2 C1 H3 110.966
C2 C1 H4 110.966 C2 C1 H5 110.966
H3 C1 H4 107.936 H3 C1 H5 107.936
H4 C1 H5 107.936 H6 C2 H7 107.936
H6 C2 H8 107.936 H7 C2 H8 107.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability