Multiple substitution, at nonequivalent sites

It will be convenient to consider under one heading all those unsaturated systems which do not fall under any of the sections previously discussed. There are four categories which are included in this catch-all heading. They are pyridones, quinones, multiple substitution at nonequivalent sites, allenes and cumulenes, and conjugated dienes and polyenes. 

Two sets of data involving multiple substitution at nonequivalent sites have been examined. The sets studied are reported in Table XLV (sets 45-51, 45-52). Results of the correlations are set forth in Table XLVI. Significant correlations were obtained for both sets of data. 

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