期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 263, 期 -, 页码 585-593出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2018.02.078
关键词
ESIPT; AIE; Azine; Schiff base; Chemosensor
资金
- DST-INSPIRE, New Delhi [IFA12-CH-59]
Benzophenone azine based schiff base exhibiting AIE and ESIPT phenomenon has been synthesised and studied the photophysical behaviour towards detection of AP' ions. The results showed that compound 2 exhibit feeble excited state intramolecular proton transfer emission in CH3CN and undergo aggregation induced emission in >70% H2O-CH3 CN. The compound 2 shows significant hydrodynamic diameter change from 20 nm to 200 nm upon increasing the H2O volume ratio in CH3 CN. Compound 2 shows colorimetric and off-on emission response for Al3+, with detection limit of 2.7 x 10(-7)M in CH3OH. The association of compound 2 to Al3+ also causes restriction in intramolecular motion induced emission. The hydrodynamic diameter of compound 2 increases from 335 nm to 625 nm in the presence of Al3+ ion in CH3OH. (C) 2018 Elsevier B.V. All rights reserved.
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