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Molecular orbital diagrams- Anthracene/Phenanthrene/Pyrene watch

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    Hi,
    Does anyone know how to draw out any of the molecules as a molecular orbital and predict whether aromatic or not.
    Thanks
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    (Original post by Flrunner97)
    Hi,
    Does anyone know how to draw out any of the molecules as a molecular orbital and predict whether aromatic or not.
    Thanks
    This is extremely difficult to do and to draw out the MO of a molecule there is often heavy duty computer programs needed.
    As for predicting whether something is aromatic I suggest looking up the definition of Huckel's Rule (I think it states that aromatic structures must be monocyclic, have [4n+2] pi electrons - where n>0, also it states that it must be coplanar, as well as some other jargon)
    if asked to draw molecular orbitals I all I can say is that s atomic orbitals are spherical and p atomic orbitals are like a dumbbell. Drawing an MO may be drawing two AOs which have overlapped.
 
 
 
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