Successful application of the spin-delocalization substituent constants δ to the correlation of the uvspectra of some model compounds with Para-Y-substituted phenyl groups
1995
UV spectra of 16 p-Y-substituted phenylacetylenes (I-Ys), nine p-Y-substituted acetophenones (2-Ys) and six p-Y-substituted-p′-methylsulphonylstilbenes (3-Ys) were measured and correlated against spin-delocalization substitutent constants (σ.) with confidence levels above 99·9%. UV spectra of five ethyl 3-hydroxy-3-(p-Y-substituted-phenyl)-propanates (4-Ys) and five 1-(p-Y-substituted-phenyl)-3-butyn-1-ols (5-Ys) were also measured. Correlation analysis results are discussed. Some literature UV data were also successfully correlated by the dual-parameter equation.
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