Jump to main content
Jump to site search


Two donor-acceptor (D-A) type Zn(II) complexes as fluorescent probes for highly selective detection of iodide

Abstract

Two D-A type Zn(II) coordination complexes ([Zn2(L1)2(MeCN)(MeOH)]•(MeCN) (1) and [ZnL2(H2O)] (2)) were synthesized from diaminomaleonitrile-based (DMN) Schiff-base ligands (L1 = 2-Amino-3-[(2-hydroxy-naphthalene-1-ylmethylene)-amino]-but-2-enedinitrile, L2 = 2-[(4-chloro-2-hydroxy-benzylidene)-amino]-3-[(2-hydroxy-naphthalene-1-ylmethylene)-amino]-but-2-enedinitrile). Based on the weak blue fluorescence in THF solution and the bright yellow fluorescence in solid state, the ligand L1 shows obvious aggregation induced emission (AIE) in THF-H2O solvent system. The fluorescent emission of complexes 1 and 2 have a significant red-shift relative to the ligand in THF solution. Interestingly, because of aggregation caused by the interaction between L1 and iodide (I-), complexes 1 and 2 exhibit excellent selectivity for fluorescence detecing iodide, and the quenching efficiency of 2 with iodide is higher than 1.

Back to tab navigation

Supplementary files

Article information


Submitted
11 Dec 2019
Accepted
05 Feb 2020
First published
07 Feb 2020

CrystEngComm, 2020, Accepted Manuscript
Article type
Paper

Two donor-acceptor (D-A) type Zn(II) complexes as fluorescent probes for highly selective detection of iodide

H. Su, L. Hao, W. Hussain, Z. Li and H. Li, CrystEngComm, 2020, Accepted Manuscript , DOI: 10.1039/C9CE01953G

Social activity

Search articles by author

Spotlight

Advertisements