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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP4=FULL/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP4=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-79.761665
Energy at 298.15K-79.767580
HF Energy-79.265326
Nuclear repulsion energy42.372749
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 MP4=FULL/aug-cc-pVQZ
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 3049 3049        
2 A1g 1430 1430        
3 A1g 1020 1020        
4 A1u 313 313        
5 A2u 3050 3050        
6 A2u 1410 1410        
7 Eg 3115 3115        
7 Eg 3115 3115        
8 Eg 1515 1515        
8 Eg 1513 1513        
9 Eg 1226 1226        
9 Eg 1226 1226        
10 Eu 3138 3138        
10 Eu 3137 3137        
11 Eu 1516 1516        
11 Eu 1515 1515        
12 Eu 821 821        
12 Eu 820 820        

Unscaled Zero Point Vibrational Energy (zpe) 16463.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16463.5 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 MP4=FULL/aug-cc-pVQZ
ABC
2.70578 0.67183 0.67183

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVQZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.761
C2 0.000 0.000 -0.761
H3 0.000 1.015 1.155
H4 -0.879 -0.508 1.155
H5 0.879 -0.508 1.155
H6 0.000 -1.015 -1.155
H7 -0.879 0.508 -1.155
H8 0.879 0.508 -1.155

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52261.08871.08871.08872.16852.16852.1685
C21.52262.16852.16852.16851.08871.08871.0887
H31.08872.16851.75811.75813.07532.52322.5232
H41.08872.16851.75811.75812.52322.52323.0753
H51.08872.16851.75811.75812.52323.07532.5232
H62.16851.08873.07532.52322.52321.75811.7581
H72.16851.08872.52322.52323.07531.75811.7581
H82.16851.08872.52323.07532.52321.75811.7581

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.199 C1 C2 H7 111.199
C1 C2 H8 111.199 C2 C1 H3 111.199
C2 C1 H4 111.199 C2 C1 H5 111.199
H3 C1 H4 107.689 H3 C1 H5 107.689
H4 C1 H5 107.689 H6 C2 H7 107.689
H6 C2 H8 107.689 H7 C2 H8 107.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability