Improved Solvatochromism and Quantum Yields in Acridine through Polarity-Enhanced π-Conjugation DOI
Jiancheng Zhou, Yan Jiang, Qingwei Jiang

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 4853 - 4860

Published: May 8, 2025

Fluorophores exhibiting strong solvatochromism are strongly desired for applications in cellular imaging, photodevices, and fluorescence sensing. However, achieving high quantum yields increasingly polar environments remains a significant challenge due to the complex balance required between transition dipole moment low emission energy. In this study, we present an acridine derivative of pyrene, Ad-Py, which features donor-π-acceptor (D-π-A) scaffold. Notably, fluorophore demonstrated solvatochromic property, red-shift 113 nm, along with (Φf = 83.5-90.6%) from less solvent n-hexane highly dimethyl sulfoxide (DMSO). The incorporation pyrene moiety effectively extended π-conjugation Ad-Py solvents finely tuned proportion charge transfer (CT) state, leading enhanced yields. Moreover, its sensitivity microenvironmental changes, facilitated visual measurement SO2, detection limit <10 ppb.

Language: Английский

Improved Solvatochromism and Quantum Yields in Acridine through Polarity-Enhanced π-Conjugation DOI
Jiancheng Zhou, Yan Jiang, Qingwei Jiang

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 4853 - 4860

Published: May 8, 2025

Fluorophores exhibiting strong solvatochromism are strongly desired for applications in cellular imaging, photodevices, and fluorescence sensing. However, achieving high quantum yields increasingly polar environments remains a significant challenge due to the complex balance required between transition dipole moment low emission energy. In this study, we present an acridine derivative of pyrene, Ad-Py, which features donor-π-acceptor (D-π-A) scaffold. Notably, fluorophore demonstrated solvatochromic property, red-shift 113 nm, along with (Φf = 83.5-90.6%) from less solvent n-hexane highly dimethyl sulfoxide (DMSO). The incorporation pyrene moiety effectively extended π-conjugation Ad-Py solvents finely tuned proportion charge transfer (CT) state, leading enhanced yields. Moreover, its sensitivity microenvironmental changes, facilitated visual measurement SO2, detection limit <10 ppb.

Language: Английский

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