[葫芦[8]脲诱导菲和芴的室温磷光]
[Cucurbit[8]urils-induced room temperature phosphorescence of phenanthrene and fluorene].
作者信息
Gao Zhong-Wei, Mu Lan, Xue Sai-Feng, Tao Zhu, Zeng Xi
机构信息
College of Chemistry and Chemical Engineering and Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China.
出版信息
Guang Pu Xue Yu Guang Pu Fen Xi. 2010 Apr;30(4):1026-9.
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 lambda(ex)/lambda(em) = 282/509 nm and lambda(ex)/lambda(em) = 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 x 10(-7) -1. 5 x 10(-6) mol x L(-1), 1.5 x 10(-6)-1.0 x 10(-5) mol x L(-1) and 8.0 x 10(-7)-8.0 x 10(-6) mol x L(-1), respectively. The detection limits were 4.8 x 10(-9) mol x L(-1) and 8.0 x 10(-9) mol x L(-1) respectively.
本文首次报道了以葫芦[8]脲为诱导剂、碘化钾为重原子微扰剂、亚硫酸钠为除氧剂，实现了菲和芴的新型室温磷光。室温磷光最大波长为λ(ex)/λ(em)=282/509 nm和λ(ex)/λ(em)=276/518 nm，两个体系的室温磷光寿命分别为1.82 ms和3.68 ms。在最佳实验条件下，室温磷光强度与菲和芴的浓度在1.0×10(-7)-1.5×10(-6) mol·L(-1)、1.5×10(-6)-1.0×10(-5) mol·L(-1)和8.0×10(-7)-8.0×10(-6) mol·L(-1)范围内呈线性关系，检测限分别为4.8×10(-9) mol·L(-1)和8.0×10(-9) mol·L(-1)。
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