Open AccessSynthesis and spectroscopic properties of a fluorosensor for Zn2+ ions
Author(s) -
Nawal K. Al-Rasbi,
Bushra AlWihibi,
Nada AlNofali
Publication year - 2014
Publication title -
maǧallaẗ ǧāmiʿaẗ al-sulṭān qābūs li-l-ʿulūm/sultan qaboos university journal for science
Language(s) - English
Resource type - Journals
eISSN - 2414-536X
pISSN - 2308-3921
DOI - 10.24200/squjs.vol19iss1pp8-14
Subject(s) - chemistry , ion , ligand (biochemistry) , schiff base , fluorescence , polar , transition metal , metal ions in aqueous solution , coordination complex , crystallography , inorganic chemistry , metal , organic chemistry , catalysis , biochemistry , physics , receptor , quantum mechanics , astronomy
The new Schiff base ligand L: (E)-N'-(pyridin-2-ylmethylene)acetohydrazide, was synthesized, and its reaction with Zn(II) ions form the complex: [ZnL2](ClO4)2, as confirmed by X-ray crystallography. This complex is stable in polar and non-polar solvents as proven by NMR. A significant enhancement in the fluorescence was observed from L upon coordination to Zn(II) ions over other transition metals such as Fe(II), Co(II), Ni(II), Cu(II), Cd(II) and Ag(I). These results suggest that L can be used as a selective flourosensor for the detection of Zn(II) ions.