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

被引：18
|
作者：
Song, Jian-Biao [1 ]
Wang, Pengfei [1 ]
Yan, Li [2 ]
Hao, Liang [1 ]
Khan, Maroof Ahmad [1 ]
Liu, Gui-lei [3 ]
Li, Hui [1 ]
机构：
[1] Beijing Inst Technol, Sch Chem & Chem Engn, Minist Educ, Key Lab Clusters Sci, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Anal & Testing Ctr, Beijing 100081, Peoples R China
[3] Natl Res Ctr Geoanal, Beijing 100037, Peoples R China
来源：
DALTON TRANSACTIONS | 2020年 / 49卷 / 14期
基金：
中国国家自然科学基金;
关键词：
SELECTIVE COLORIMETRIC CHEMOSENSOR; FLUORESCENT CHEMOSENSOR; OPTICAL-PROPERTIES; SALPHEN COMPLEXES; ION; RECEPTOR; LIGANDS; PROBES; HALIDE; SENSOR;
D O I：
10.1039/c9dt04840e
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Four D-A type Zn(II) coordination complexes, [Zn(C29H29N3O2)center dot(CH3OH)]center dot(CH3OH) (1), Zn-2(C74H90N6O4)center dot(CH3OH) (2), [Zn(C30H28N4O2)center dot(CH3OH)]center dot(CH3OH) (3) and [Zn(C38H44N4O2)center dot(C2H5OH)]center dot(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.
引用
收藏
页码：4358 / 4368
页数：11
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