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Room temperature phosphorescence of alpha-bromonaphthalene induced by cyclodextrin in the presence of hexahydropyridine or 1-ethylpiperidine and its application

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Room temperature phosphorescence of alpha-bromonaphthalene induced by cyclodextrin in the presence of hexahydropyridine or 1-ethylpiperidine and its application.htm (413bytes)
Date
2006-11
Author
Zhu, Ya-Xian
朱亚先
Peng, Jing-He
Zhang, Yong
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  • 化学化工-已发表论文 [14469]
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Abstract
Two novel heterocyclic third components, hexahydropyridine (HHP) and 1-ethylpiperidine (EP) were firstly found to enhance room temperature phosphorescence (RTP) of alpha-bromonaphthalene (ot-BrN) induced by cyclodextrin. The effects of equilibrium time for formation of inclusion complex, temperature, pH values and the variation of concentrations of each component on RTP of alpha-BrN and the RTP lifetime of each ternary complex had been investigated and compared to discuss inclusion mechanism of ternary complexes. The RTP lifetimes of alpha-BrN/beta-CD[HHP, alpha-BrN/beta-CD/cyclohexane (CH) and alpha-BrN/beta-CD/EP were 6.18, 7.71 and 9.36 ms, respectively. Based on the strongest RTP of a-BrN induced by CD in the presence of EP, a method for determination of EP was established. Under the optimal conditions, the analytical curve of EP gave a liner dynamic range of 1.50 x 10(-4) to 1.50 x 10(-3) mol L-1 with a detection limit of 4.8 x 10(-5) mol L-1. When the established CD-RTP method was applied to determine the concentration of EP synthetic samples in distilled water, the experimental results demonstrated that the recovery was 91.4% with a relative standard deviation less than 2.85% (n = 7). (c) 2006 Elsevier B.V. All rights reserved.
Citation
ANALYTICA CHIMICA ACTA,2007,583(2):364-369
URI
http://dx.doi.org/doi:10.1016/j.aca.2006.10.055
https://dspace.xmu.edu.cn/handle/2288/9137

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