十氢喹啉存在下β-环糊精诱导α-溴代萘的室温磷光  

Room Temperature Phosphorescence of α-Bromonaphthalene Induced by β-Cyclodextrin in the Presence of Decahydroquinoline

作　　者：陈丽[1] 周俊伟[2] 朱亚先[2] 彭景吓[1] 张勇[1] 

机构地区：[1]厦门大学环境科学研究中心近海海洋环境科学国家重点实验室,福建厦门361005 [2]厦门大学化学系,福建厦门361005

出　　处：《分析测试学报》2008年第12期1322-1325,1329,共5页Journal of Instrumental Analysis

基　　金：国家自然科学基金资助项目(20577037)

摘　　要：首次将杂环分子十氢喹啉（decahydroquinoline,DHQ）引入β-环糊精（β-cyclodextrin,β-CD）诱导α-溴代萘（α-bromonaphthalene,α-BrN）室温磷光（room temperature phosphorescence,RTP）的体系中,由于DHQ和β-CD及α-BrN形成三元包络物,不经除氧就可观察到强而稳定的RTP信号。实验证实,孤对电子、氢键封盖作用和微晶的二次刚性化作用是DHQ存在下β-CD诱导α-BrN产生强而稳定的RTP的关键因素。在优化实验条件下,体系的RTP强度与α-BrN浓度在1.0×10^-6～3.5×10^-5mol.L^-1范围内呈良好线性关系（r=0.9960）,检出限为6.25×10^-9mol.L^-1。该方法用于合成样中α-BrN的测定,回收率为90%～105%,相对标准偏差（RSD）为2.8%～6.5%（n=5）,结果满意。In this paper, deeahydroquinoline （DHQ） containing lone pair electrons on N atom was firstly introduced into the system of α-bromonaphthalene （α-BrN） - β-cyclodextrin （β-CD）, and a strong and stable room temperature phosphorescence（RTP） intensity produced from inclusion complex offl-CD -α-BrN -DHQ was observed. Experimental results showed that lone pair electrons, hydrogen bonding force and secondary mierocrystal rigidization effects were the key factors for the strong RTP of α-BrN induced byβ-CD in the presence of DHQ. Under the optimal conditions, the standard curve of α-BrN was linear over the concentration in the range of 1.0 x 10^-6 ～ 3.5× 10^-5 mol . L^-1 with correlation coefficient of 0. 996 0. The detection limit was 6. 25× 10^-9 mol.L^-1. The proposed method was successfully applied in the determination of α-BrN in synthesized samples with the recoveries in the range of 90% - 105% and the relative standard deviations of 2.8%- 6. 5% （ n = 5 ）.

关 键 词：室温磷光 Β-环糊精 Α-溴代萘 十氢喹啉 

分 类 号：O657.32[理学—分析化学] O625.23[理学—化学]