Home / Publications / Significant impact of 3-positioned substituent on the fluorescent properties of 5-hydroxyisoquinolones

Significant impact of 3-positioned substituent on the fluorescent properties of 5-hydroxyisoquinolones

Alexander Yuryevich Belyy 1
Alexander Yuryevich Belyy
, 
Alena D Sokolova 1
Alena D Sokolova
, 
Rinat Faritovich Salikov 1
Rinat Faritovich Salikov
, 
Konstantin Pavlovich Trainov 1
Konstantin Pavlovich Trainov
, 
Dmitry Nikolaevich Platonov 1
Dmitry Nikolaevich Platonov
, 
10.71267/mencom.7618
Published 2025-02-18
Communication , Volume 35, Issue 2, 179-182
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Belyy A. Y. et al. Significant impact of 3-positioned substituent on the fluorescent properties of 5-hydroxyisoquinolones // Mendeleev Communications. 2025. Vol. 35. No. 2. pp. 179-182.
GOST all authors (up to 50) Copy
Belyy A. Y., Sokolova A. D., Salikov R. F., Trainov K. P., Platonov D. N., Tomilov Y. V. Significant impact of 3-positioned substituent on the fluorescent properties of 5-hydroxyisoquinolones // Mendeleev Communications. 2025. Vol. 35. No. 2. pp. 179-182.
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TY - JOUR
DO - 10.71267/mencom.7618
UR - https://mendcomm.colab.ws/publications/10.71267/mencom.7618
TI - Significant impact of 3-positioned substituent on the fluorescent properties of 5-hydroxyisoquinolones
T2 - Mendeleev Communications
AU - Belyy, Alexander Yuryevich
AU - Sokolova, Alena D
AU - Salikov, Rinat Faritovich
AU - Trainov, Konstantin Pavlovich
AU - Platonov, Dmitry Nikolaevich
AU - Tomilov, Yury Vasil'evich
PY - 2025
DA - 2025/02/18
PB - Mendeleev Communications
SP - 179-182
IS - 2
VL - 35
ER -
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@article{2025_Belyy,
author = {Alexander Yuryevich Belyy and Alena D Sokolova and Rinat Faritovich Salikov and Konstantin Pavlovich Trainov and Dmitry Nikolaevich Platonov and Yury Vasil'evich Tomilov},
title = {Significant impact of 3-positioned substituent on the fluorescent properties of 5-hydroxyisoquinolones},
journal = {Mendeleev Communications},
year = {2025},
volume = {35},
publisher = {Mendeleev Communications},
month = {Feb},
url = {https://mendcomm.colab.ws/publications/10.71267/mencom.7618},
number = {2},
pages = {179--182},
doi = {10.71267/mencom.7618}
}
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Cite this
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Belyy, Alexander Yuryevich, et al. “Significant impact of 3-positioned substituent on the fluorescent properties of 5-hydroxyisoquinolones.” Mendeleev Communications, vol. 35, no. 2, Feb. 2025, pp. 179-182. https://mendcomm.colab.ws/publications/10.71267/mencom.7618.

Keywords

5-hydroxyisoquinolones
fluorescence
isoquinolones
photoacidity
Stokes shift
TD-DFT
vibrational relaxation

Abstract

Fluorescent properties of 5-hydroxyisoquinolone-3,4,6,7,8- pentacarboxylates and their 4,6,7,8-tetracarboxylate analogs lacking a 3-positioned electron-withdrawing ester group differ substantially. The presence of an electron-withdrawing group at position 3 in the 5-hydroxyisoquinolone system was found crucial for their vibrational relaxation in the anionic forms, which highlights the importance of substitution pattern providing valuable insights for future research in this area.

Funders

Russian Science Foundation
23--23--00624

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