Tunable full-color dual-state (solution and solid) emission of push–pull molecules containing the 1-pyrindane moiety

• Anastasia I. Ershova,
• Sergey V. Fedoseev,
• Konstantin V. Lipin,
• Mikhail Yu. Ievlev,
• Oleg E. Nasakin and
• Oleg V. Ershov

Beilstein J. Org. Chem. 2024, 20, 3016–3025, doi:10.3762/bjoc.20.251

• unchanged. This represents a rare approach for the design of such fluorophores. Arylidene derivatives of pyrindane were found to be efficient fluorescent dyes showing a moderate to high emission quantum yield. The push–pull molecules were also characterized by a dual-state emission (in solution and in the

• acid both in solution and in the solid state. Keywords: dual-state emission; full-color emission; nitriles; push–pull molecules; pyrindane; stilbazole; Introduction Over the past decades, heteroaromatic push–pull molecules have attracted great attention due to their widespread use in materials

• , which is a rare approach for such fluorophores. Another rare phenomenon for push–pull molecules is dual-state emission (DSE) [45][46][47]. At the same time, the scope of applications of fluorophores exhibiting DSE is much wider. This is due to the fact that DSE molecules, after absorbing energy, are