کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1309649 | 975216 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Metal ion interaction with a novel anthracene pendant-armed fluorescent molecular probe. Synthesis, characterization, and fluorescence studies Metal ion interaction with a novel anthracene pendant-armed fluorescent molecular probe. Synthesis, characterization, and fluorescence studies](/preview/png/1309649.png)
A new scorpionate system (L) containing an emissive anthracene pendant arm, derived of O1,O7-bis(2-formylphenyl)-1,4,7-trioxaheptane and tren, has been synthesized and characterized. The sensing capability of L towards a range of metal ions has been studied. Protonation and complexation studies, using UV–Vis and fluorescent emission measurements, have been performed with alkaline and alkaline earth metal ions (M = Na(I), K(I), Li(I), Ca(II), Mg(II)), as well as transition and post-transition metal ions (M = Cr(III), Cu(II) and Zn(II), Cd(II), Hg(II) and Al(III)). An increase in the fluorescence emission (CHEF effect) was observed in methanol and in methanol/water mixtures in the presence of Cd(II) (5.0-fold), Zn(II) (4.5-fold), Cr(III) (2.0-fold) and Al(III) (1.8-fold); these results suggest a notable sensing ability of this new N3O4 ligand for these metals; these experiments were also performed in the presence of large amounts of alkaline and alkaline earth metal ions.
A new scorpionate system (L) containing an emissive anthracene pendant arm has been synthesized and characterized. An increase in the fluorescence emission (CHEF effect) was observed in methanol and in methanol/water mixtures in the presence of Cd(II), Zn(II), Cr(III) and Al(III). A CHEQ effect was observed for Cu(II) and Hg(II).Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 360, Issue 8, 30 May 2007, Pages 2734–2743