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The synthesis and photophysical properties of halide sensitive acridizinium dyes
被引:16
作者:
Jagt, Richard B. C.
[1
]
Kheibari, Mohsen Soleimani
[2
]
Nitz, Mark
[1
]
机构:
[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada
[2] Univ Toronto, Dept Chem Engn & Appl Chem, Toronto, ON M5S 3E5, Canada
基金:
加拿大自然科学与工程研究理事会;
关键词:
Halide sensors;
Acridizinium salts;
Stern-Volmer constants;
Fluorescence lifetime;
AROMATIC CYCLODEHYDRATION;
DERIVATIVES;
SALTS;
D O I:
10.1016/j.dyepig.2008.10.003
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A series of acridizinium (benzo[b]quinolizinium) salts containing methoxy, fluoro and chloro substituents; were synthesized and their spectroscopic properties and sensitivity towards halide quenching in water were determined. The salts have substantially improved properties over the commonly employed quinolinium and acridinium fluorophores for the sensing of bromide and iodide ions. Of the substituted acridiziniums investigated, 8,10-difluoro-acridizinium bromide has the best combination of properties as a bromide or iodide sensor. (C) 2008 Elsevier Ltd. All rights reserved.
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页码:161 / 165
页数:5
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