Issue 19, 2011

Aroylhydrazone derivative as fluorescent sensor for highly selective recognition of Zn2+ ions: syntheses, characterization, crystal structures and spectroscopic properties

Abstract

A new Zn2+ fluorescent chemosensor N′-(3,5-di-tert-butylsalicylidene)-2-hydroxybenzoylhydrazine (H3L1) and its complexes [Zn(HL1)C2H5OH] (1) and [Cu(HL1)(H2O)]CH3OH (2) have been synthesized and characterized in terms of their crystal structures, absorption and emission spectra. H3L1 displays high selectivity for Zn2+ over Na+, K+, Mg2+, Ca2+ and other transition metal ions in Tris–HCl buffer solution (pH = 7.13, EtOHH2O = 8 : 2 v/v). To obtain insight into the relation between the structure and selectivity, a similar ligand 3,5-di-tert-butylsalicylidene benzoylhydrazine (H2L2), which lacks the hydroxyl group substituent in salicyloyl hydrazide compared with H3L1, and its complex [Zn2(HL2)2(CH3COO)2(C2H5OH)] (3), [Co(L2)2][Co(DMF)4(C2H5OH)(H2O)] (4), [Fe(HL2)2]Cl·2CH3OH (5), have also been investigated as a reference. H3L1 exhibits improved selectivity for Zn2+ compared to H2L2. The findings indicate that the hydroxyl group substituent exerts an effect on the spectroscopic properties, complex structures and selectivity of the fluorescent sensor.

Graphical abstract: Aroylhydrazone derivative as fluorescent sensor for highly selective recognition of Zn2+ ions: syntheses, characterization, crystal structures and spectroscopic properties

Supplementary files

Article information

Article type
Paper
Submitted
16 Nov 2010
Accepted
10 Mar 2011
First published
06 Apr 2011

Dalton Trans., 2011,40, 5271-5277

Aroylhydrazone derivative as fluorescent sensor for highly selective recognition of Zn2+ ions: syntheses, characterization, crystal structures and spectroscopic properties

X. Peng, X. Tang, W. Qin, W. Dou, Y. Guo, J. Zheng, W. Liu and D. Wang, Dalton Trans., 2011, 40, 5271 DOI: 10.1039/C0DT01590C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements