An NMR insight into the solvatochromic behaviour of Brooker's merocyanine dyes

Michal Afri; Hugo E. Gottlieb; Natalia Fridman; Abed Saady

doi:10.1039/d5ra03758a

An NMR insight into the solvatochromic behaviour of Brooker's merocyanine dyes

Michal Afri
, Hugo E. Gottlieb
, Natalia Fridman
, Abed Saady

Department of Chemistry

Technion-Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Systematic NMR/UV-Vis analysis of Brooker's merocyanine dyes reveals solvent polarity governs electronic structure and spectroscopy. Absorption maxima ¹³C and ¹⁵N NMR shifts correlate with E_T(30), probing zwitterionic/vinylogous amide. Substituent and solvent effects modulate these interactions, directly linking colour changes to electronic structure for rational design of environment-sensitive probes.

Original language	English
Pages (from-to)	25436-25440
Number of pages	5
Journal	RSC Advances
Volume	15
Issue number	31
DOIs	https://doi.org/10.1039/d5ra03758a
State	Published - 15 Jul 2025

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© 2025 The Royal Society of Chemistry.

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10.1039/d5ra03758a

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abstract = "Systematic NMR/UV-Vis analysis of Brooker's merocyanine dyes reveals solvent polarity governs electronic structure and spectroscopy. Absorption maxima 13C and 15N NMR shifts correlate with ET(30), probing zwitterionic/vinylogous amide. Substituent and solvent effects modulate these interactions, directly linking colour changes to electronic structure for rational design of environment-sensitive probes.",

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An NMR insight into the solvatochromic behaviour of Brooker's merocyanine dyes

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