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Colorimetric and fluorometric pH sensor based on bis(methoxycarbonyl)ethenyl functionalized BODIPY
被引:26
|作者:
Teknikel, Efdal
[1
]
Unaleroglu, Canan
[1
]
机构:
[1] Hacettepe Univ, Dept Chem, TR-06800 Ankara, Turkey
关键词:
pH sensor;
Colorimetric sensor;
Fluorometric sensor;
BODIPY;
Knoevenagel condensation;
Ester;
INDUCED EMISSION ENHANCEMENT;
BORON-DIPYRROMETHENE DYES;
PHOTOPHYSICAL PROPERTIES;
RATIONAL DESIGN;
METAL-ION;
FLUORESCENCE;
AGGREGATION;
WATER;
PROBES;
DERIVATIVES;
D O I:
10.1016/j.dyepig.2015.04.021
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
We report a difluoroboradiaza-s-indacene (BODIPY) dye substituted with bis(methoxycarbonyl)ethenyl at 3 and 5 positions as a near-IR colorimetric and fluorometric "on-off' pH sensor. The sensor absorbs and emits light at ca. 600 nm with high absorbance and fluorescence intensities (log(epsilon) = 5.0, phi f = 0.77 in ethanol) and basification causes dramatic changes on these optical properties. The sensor reversibly responses to pH changes between 7.0 and 10.0 in ethanol/water and can easily be synthesized from 1,9-diformyldipyrromethane with a one pot procedure. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:239 / 244
页数:6
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