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

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.

SUBMITTER: Afri M 

PROVIDER: S-EPMC12269555 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature