Design and Synthesis of a Selective Chemosensor for Zn 2+ | Zendy

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Design and Synthesis of a Selective Chemosensor for Zn 2+

Author(s) -

Xie Nan,

Chen Yi

Publication year - 2006

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.200690337

Subject(s) - chemistry , fluorescence , titration , schiff base , acetonitrile , metal ions in aqueous solution , metal , ligand (biochemistry) , inorganic chemistry , ion , qualitative inorganic analysis , nuclear chemistry , photochemistry , stereochemistry , organic chemistry , biochemistry , physics , receptor , quantum mechanics

A hydroxyl substituted phenolic Schiff base 1 , used as sensor for detection of Zn 2+ , was synthesized and investigated. It was found that a strong fluorescence emission was observed when 1 bound to Zn 2+ in acetonitrile, whereas no fluorescence emission was detected when 1 bound to other metal ions (Fe 2+ , Co 2+ , Ni 2+ , Cu 2+ , Cd 2+ , Hg 2+ , Mg 2+ , Pb 2+ , Ca 2+ , Ba 2+ , Sr 2+ ) except for Mg 2+ , for which a weak fluorescence emission was detected in the same condition. Competition experiment showed that no obvious interference was observed in its fluorescence while 1 performed the titration with Zn 2+ in the different mixtures of metal ions. To understand the site where Zn 2+ coordinated to the ligand and the mechanism of binding, three other hydroxyl substituted phenolic Schiff bases 2–4 were synthesized and their binding reactions with Zn 2+ were also investigated.

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