光谱学与光谱分析 |
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Cucurbit[8]urils-Induced Room Temperature Phosphorescence of Phenanthrene and Fluorene |
GAO Zhong-wei, MU Lan*, XUE Sai-feng, TAO Zhu, ZENG Xi |
College of Chemistry and Chemical Engineering and Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China |
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Abstract In this paper, a new room temperature phosphorescence for phenanthrene and fluorene were first reported with cucurbit[8]uril as the revulsant, KI as the heavy atomperturber, and Na2SO3 as deoxygenation. The RTP maximum wavelengths were λex/λem=282/509 nm and λex/λem=276/518 nm and the RTP lifetimes of the two systems were 1.82 and 3.68 ms respectively. Under optimum experimental conditions, the RTP intensity was liner with phenanthrene and fluorene concentration in the range of 1.0×10-7-1.5×10-6 mol·L-1,1.5×10-6-1.0×10-5 mol·L-1 and 8.0×10-7-8.0×10-6 mol·L-1, respectively. The detection limits were 4.8×10-9 mol·L-1 and 8.0×10-9 mol·L-1 respectively.
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Received: 2009-05-10
Accepted: 2009-08-20
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Corresponding Authors:
MU Lan
E-mail: sci.lmou@gzu.edu.cn
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