Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown
Published: April 30, 2025
Solvatochromic fluorophores, widely employed in various analytical applications such as environmentally responsive dyes, typically feature a donor-π-acceptor (D-π-A) structure. Most recently, Klymchenko and we independently designed D-π-A fluorophores with strong acceptor, trifluoroacetyl group, to achieve fluorescent solvatochromism reported its application membrane analysis (Klymchenko et al. Anal. Chem. 2024, 96, 13242) molecular thermometer (Konishi J. Am. Soc. 2025, 147, 9953), respectively. However, these reports have only considered few π-electron donors including dialkylamines. There is not enough scope for solvatochromic that take advantage of the properties group. In this study, systematically investigated π-conjugated aromatic skeleton groups. The relationship between dye structure absorption, fluorescence, quantum yield were clarified, design strategy exhibit desired was established. Moreover, fluorescence quenching can occur depending on solvent selection or study provides insightful trifluoroacetyl-based strategy, emphasizing their prospective but underused acceptor units next fluorophore development.
Language: Английский