Issue 14, 2020
From the journal:

Dalton Transactions

Crystal structures, red-shifted luminescence and iodide-anion recognition properties of four novel D–A type Zn(ii) complexes†

Jian-Biao Song,a   Pengfei Wang,a   Li Yan,b   Liang Hao,a   Maroof Ahmad Khan,a   Gui-lei Liuc  and  Hui Li ORCID logo *a  

* Corresponding authors

a Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
E-mail: lihui@bit.edu.cn
Fax: +86 10 68912667

b Analysis and Testing Center, Beijing Institute of Technology, Beijing, P. R. China
E-mail: 626828807@qq.com

c National Research Center for Geoanalysis, Beijing 100037, P. R. China
E-mail: liuguilei2008@163.com

Abstract

Four D–A type Zn(II) coordination complexes, [Zn(C29H29N3O2)·(CH3OH)]·(CH3OH) (1), Zn2(C74H90N6O4)·(CH3OH) (2), [Zn(C30H28N4O2)·(CH3OH)]·(CH3OH) (3) and [Zn(C38H44N4O2)·(C2H5OH)]·(C2H5OH) (4), were designed, synthesized, and studied. Their fluorescence properties in the solid state and in THF solution were comprehensively analysed based on their single-crystal structures. The results showed that the red-shift of fluorescence emission from complexes 1 to 4 was successfully achieved via the strategy of enhancing intramolecular charge transfer (ICT) effects by increasing the number of electron-pulling and pushing groups gradually. Meanwhile, because of the fluorescence recognition abilities of these four complexes towards iodide anions in THF, they could be regarded as potential fluorescent sensors for I− in this organic solution in the future.

Graphical abstract: Crystal structures, red-shifted luminescence and iodide-anion recognition properties of four novel D–A type Zn(ii) complexes

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Article information

DOI
https://doi.org/10.1039/C9DT04840E
Article type
Paper
Submitted
20 Dec 2019
Accepted
24 Feb 2020
First published
25 Feb 2020

Dalton Trans., 2020,49, 4358-4368

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Crystal structures, red-shifted luminescence and iodide-anion recognition properties of four novel D–A type Zn(II) complexes

J. Song, P. Wang, L. Yan, L. Hao, M. A. Khan, G. Liu and H. Li, Dalton Trans., 2020, 49, 4358 DOI: 10.1039/C9DT04840E

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