Benzene wave mechanics applied

Through his studies on the aromatic character of the heterocyclic compounds, Bonino inevitably confronted the classical problem of the structure of benzene. [50] He completed his work on the Raman spectrum of aromatic compounds which included benzene, presenting his results in April 1934 at the 9th International Congress of Pure and Applied Chemistry in Madrid. At the Madrid Congress, Bonino recommended a new formula for benzene this formula, however, lacked a rigorous quantum mechanical grounding. Rather, it represented an attempt to summarize qualitatively some fundamental ideas in the wave-mechanical interpretation of benzene (Figure 4.4). 

RESONANCE. 1. In chemistry, resonance (or mesomerism) is a mathematical concept based on quantum mechanical considerations (i.e.. die wave functions of electrons). It is also used to describe or express the true chemical structure of certain compounds that cannot be accurately represented by any one valence-bond structure. It was originally applied to aromatic compounds such as benzene, for winch there are many possible approximate structures, none of which is completely satisfactory. See also Benzene. 

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