Anion sensing by rhenium(I) carbonyls with polarized N-H recognition motifs

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• 作者：Kai-Chi Chang^a  ; [Author Vitae] ; Shih-Sheng Sun^a ;   ; [Author Vitae] ; Alistair J. Lees^b ; ^{alees@binghamton.edu}  ; [Author Vitae]
• 关键词：Anion recognition ; Rhenium(I) carbonyls ; Hydrogen-bonding interaction ; Colorimetric sensing ; Luminescent sensing
• 刊名：Inorganica Chimica Acta
• 出版年：2012
• 期刊代码：40_00201693
• 类别：ch
• 出版时间：1 July, 2012
• 卷：389
• 期：Complete
• 页码：16-28
• 文件大小：2087 K

摘要

This article describes our recent research results on several rhenium(I) carbonyls complexes with polarized N-H recognition motifs as anion receptors. Structurally simple and easily synthesized luminescent anion receptors containing an amide-type anion binding site and a rhenium(I) tricarbonyl pyridine signaling unit have been developed, and they display outstanding sensitivity and selectivity toward a variety of anionic species. Moreover, thioamides and thiourea derivatives of 2,6-pyridinedicarbonyl dichloride, isophthaloyl dichloride and terephthaloyl dichloride have been synthesized. These ligands have been incorporated in dinuclear rhenium(I) diimine tricarbonyl complexes and provide anion recognition properties in these complexes. Furthermore, the related rhenium(I) complex featuring sulfonamide interacting sites that incorporate the highly chromophoric 蟺-conjugated quinoxaline moiety has been prepared, characterized, and its photophysical properties were also studied.