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Successful application of the spin‐delocalization substituent constant σ . to the correlation of the UV spectra of some model compounds with para ‐Y‐substituted phenyl groups
Author(s) -
Jiang XiKui,
Ji GuoZhen,
Wang Daniel ZeRong,
Xie John RongYuan
Publication year - 1995
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.610081204
Subject(s) - chemistry , substituent , delocalized electron , spectral line , electron delocalization , spin (aerodynamics) , nmr spectra database , stereochemistry , organic chemistry , thermodynamics , physics , quantum mechanics
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.