摘要
在β-环糊精溶液中,环氧溴丙烷(EBH)或环氧氯烷(ECH)能够诱导α-溴代萘(α-BrN)和β-溴代萘(β-BrN)强的室温燐光(RTP).结果证明,EBH比ECH有更强的重原子增强效应(HAEE);α-BrN/ECH/β-CD三元包接合物的稳定性比β-BrN/ECH/β-CD稳定性更强.
In β-cyclodextrin (β-CD) slution, epibromohydrin (EBH) or epichlorohydrin (ECH) caninduce strong room temperature phosphorescence ( RTF ) of bromonaphthalene (BrN ) . Under optimum experimental conditions, RTF lifetimes and quenching constants of ternary inclusion complex wereinvestigated and compared in detail. The formation constants of BrN/ECH/β-CD were obtained. Theresults demonstrated that EBH was of more heavy atom enhancement effect (HAEE) than ECH forinducing β-CD-RTP and the stability of α-BrN/ECH/β-CD ternary inclusion complex was stronger thanthat of β-BrN/ECH/β-CD.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1999年第11期1292-1295,共4页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金资助课题
关键词
环糊精
诱导
室温磷光
溴化萘
RTP
EBH
ECH
Cyclodextrin induce room temperature phosphorimetry
heavy atom enhancement effect
quenching constant
formation constant
