β-cyclodextrin induced room temperature phosphorescence from 1-bromonaphthalene in the presence of naphthalene and 1-butanol
- 化学化工－已发表论文 
【中文摘要】室温下β-环糊精（β-CD）诱导的发光现象由于其不同于胶束的分子识别特性而成为一个非常活跃的研究领域。在β-CD溶液中萘（N）的荧光和1-溴萘（1-BrN）的室温磷光（RTP)性质已有报道。醇类对其发光行为的影响也有研究。但在N或N和正丁醇共存下，β-CD诱导1-BrN的RTP尚未报道。【Abstract】Intense room temperature phosphorescence (RTP) from host-guest inclusion complex of β-cyclodextrin(beta-CD) with 1-bromonaphthalene (1-BrN), stabilized by naphthalene (N) and 1-butanol(B), has been investigated, It has been confirmed that N and B are incorporated into the nonpolar cavity of β-CD as the second guest and the third one. The extra space inside the cavity is further filled by N and B, and β-CD more effectively shields 1-BrN from quenchers in aqueous solution. B completely hinders the formation of N excimer. The greater rigidity of the complex was achieved. Consequently, much more intense fluorescence of RTP appears in comparison with the ternary β-CD : 1-BrN : B or β-CD : 1-BrN : N complex. The limit of detection is 7.38X10(-8) mol/L for 1-BrN and 1.36X10(-6) mol/L for N.