AI Article Synopsis

  • The study focuses on twenty dyes that have a structure consisting of an electron-donor phenolate and an electron-withdrawing nitro-substituted phenyl ring.
  • It examines how structural variations affect the difference in electrophilic strength between the donor and acceptor parts of the dyes.
  • These variations lead to greater sensitivity to changes in solvent polarity, causing the dyes to absorb light at longer wavelengths (red-shift) in different solvents.

Article Abstract

The inverted solvatochromism of twenty dyes containing an electron-donor phenolate conjugated with an electron-withdrawing nitro-substituted phenyl ring was analyzed in terms of the dye structure and substituents. Structural factors that increased the difference between the electrophilicities of the donor and acceptor moieties, or the donor-acceptor strength of the phenolate dyes, also increased the sensitivity of the dyes to solvent-polarity changes and red-shifted their solvatochromic absorption bands.

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http://dx.doi.org/10.1039/c6cp06708eDOI Listing

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