A Novel ZnII-Sensitive Fluorescent Chemosensor Assembled within Aminopropyl-Functionalized Mesoporous SBA-15
Inorganic Chemistry2006Vol. 45(17), pp. 6844–6850
Citations Over TimeTop 10% of 2006 papers
Ling Gao, Ying Wang, Jianqiang Wang, Li Huang, Liying Shi, Xiaoxing Fan, Zhigang Zou, Tao Yu, Mei Zhu, Zhaosheng Li
Abstract
A novel Zn2+-sensitive fluorescent chemosensor SC/SBA-15 has been obtained by the self-assembly of 4-chloroaniline-N-salicylidene (SC), a Schiff base ligand, within the channel of silylation-modified SBA-15 without destroying its hexagonally ordered mesoporous structure. The remarkable 200-fold fluorescence enhancement with a large Stokes shift of 180 nm in luminescence emission upon the addition of Zn2+ is attributed to the formation of a coordinate complex of a large rigid conjugate system and Zn2+ ions.
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