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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP3/cc-pVDZ
 hartrees
Energy at 0K-79.569875
Energy at 298.15K-79.575811
HF Energy-79.234449
Nuclear repulsion energy41.924130
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 MP3/cc-pVDZ
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 3088 2927 0.00      
2 A1g 1440 1365 0.00      
3 A1g 1037 983 0.00      
4 A1u 328 311 0.00      
5 A2u 3084 2923 54.28      
6 A2u 1407 1334 0.01      
7 Eg 3158 2993 0.00      
7 Eg 3158 2993 0.00      
8 Eg 1505 1427 0.00      
8 Eg 1505 1427 0.00      
9 Eg 1228 1164 0.00      
9 Eg 1228 1164 0.00      
10 Eu 3179 3013 60.35      
10 Eu 3179 3013 60.35      
11 Eu 1507 1429 6.81      
11 Eu 1507 1429 6.81      
12 Eu 825 782 2.91      
12 Eu 825 782 2.91      

Unscaled Zero Point Vibrational Energy (zpe) 16593.7 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 15729.2 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 MP3/cc-pVDZ
ABC
2.63453 0.66020 0.66020

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVDZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.767
C2 0.000 0.000 -0.767
H3 0.000 1.029 1.166
H4 -0.891 -0.514 1.166
H5 0.891 -0.514 1.166
H6 0.000 -1.029 -1.166
H7 -0.891 0.514 -1.166
H8 0.891 0.514 -1.166

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53361.10351.10351.10352.18972.18972.1897
C21.53362.18972.18972.18971.10351.10351.1035
H31.10352.18971.78171.78173.11012.54912.5491
H41.10352.18971.78171.78172.54912.54913.1101
H51.10352.18971.78171.78172.54913.11012.5491
H62.18971.10353.11012.54912.54911.78171.7817
H72.18971.10352.54912.54913.11011.78171.7817
H82.18971.10352.54913.11012.54911.78171.7817

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.220 C1 C2 H7 111.220
C1 C2 H8 111.220 C2 C1 H3 111.220
C2 C1 H4 111.220 C2 C1 H5 111.220
H3 C1 H4 107.668 H3 C1 H5 107.668
H4 C1 H5 107.668 H6 C2 H7 107.668
H6 C2 H8 107.668 H7 C2 H8 107.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability