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Issue 25, 2019
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A series of trinuclear zinc(ii) complexes with reduced Schiff base ligands: turn-off fluorescent chemosensors with high selectivity for nitroaromatics

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Abstract

A facile method for synthesizing trinuclear zinc(II) complexes with compartmental reduced Schiff bases has been described. Five such complexes, [{(N3)Zn(L1)}2Zn] (1), [{(SCN)Zn(L1)}2Zn] (2), [{(SCN)Zn(L2)}2Zn] (3), [{(N3)Zn(L2)}2Zn] (4) and [{(N3)Zn(L3)}2Zn]·CH2CL2 (5) where H2L1 = 2,2′-[(1,3-propanediyl)bis(iminomethylene)]bis[6-ethoxyphenol], H2L2 = 2,2′-[(2,2-dimethyl-1,3-propanediyl)bis(iminomethylene)]bis[6-methoxyphenol] and H2L3 = 2,2′-[(2,2-dimethyl-1,3-propanediyl)bis(iminomethylene)]bis[6-ethoxyphenol], were synthesized and characterized by elemental and spectral analyses. X-ray crystallographic analyses have confirmed their structures. All complexes may be used as sensors for the detection of nitroaromatics in DMF via turn-off fluorescence response.

Graphical abstract: A series of trinuclear zinc(ii) complexes with reduced Schiff base ligands: turn-off fluorescent chemosensors with high selectivity for nitroaromatics

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Supplementary files

Article information


Submitted
22 Apr 2019
Accepted
26 May 2019
First published
27 May 2019

New J. Chem., 2019,43, 10093-10102
Article type
Paper

A series of trinuclear zinc(II) complexes with reduced Schiff base ligands: turn-off fluorescent chemosensors with high selectivity for nitroaromatics

M. Karmakar, S. Roy and S. Chattopadhyay, New J. Chem., 2019, 43, 10093
DOI: 10.1039/C9NJ02060H

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