Oxazine‐thione‐based Colorimetric Fluorescent OFF‐ON Probes for Hg 2+  Recognition | Zendy

Zhang Qianqian | Zendy; Sun Ru | Zendy; Ge Jianfeng | Zendy; Xu Qingfeng | Zendy; Li Najun | Zendy; Lu Jianmei | Zendy

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Oxazine‐thione‐based Colorimetric Fluorescent OFF‐ON Probes for Hg 2+ Recognition

Author(s) -

Zhang Qianqian,

Sun Ru,

Ge Jianfeng,

Xu Qingfeng,

Li Najun,

Lu Jianmei

Publication year - 2011

Publication title -

chinese journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.28

H-Index - 41

eISSN - 1614-7065

pISSN - 1001-604X

DOI - 10.1002/cjoc.201100376

Subject(s) - chemistry , fluorescence , acetonitrile , metal ions in aqueous solution , solvent , ion , time dependent density functional theory , photochemistry , metal , analytical chemistry (journal) , density functional theory , computational chemistry , chromatography , organic chemistry , optics , physics

Two colorimetric probes based on oxazine‐thione 1a and 1b for the detection of Hg 2+ were designed and synthesized. The probe 1a exhibits about a 70‐fold enhancement in fluorescence and a color change after the addition of Hg 2+ in acetonitrile/wate solvent. 1a was also highly selective to Hg 2+ over other metal ions. Furthermore, DFT/TDDFT calculations were taken to explain the OFF‐ON emission response.

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