Imidazo-benzo-15-crown-5 ethers bearing arylthienyl and bithienyl moieties as novel fluorescent chemosensors for Pd2+ and Cu2+

被引：28

作者：

Batista, Rosa M. F. ^{[2
]}

Oliveira, Elisabete ^{[1
]}

Costa, Susana P. G. ^{[2
]}

Lodeiro, Carlos ^{[1
,3
]}

Raposo, M. Manuela M. ^{[2
]}

机构：

[1] FCT UNL, Dept Chem, REQUIMTE, P-2829516 Monte De Caparica, Portugal

[2] Univ Minho, Ctr Chem, P-4710057 Braga, Portugal

[3] Univ Vigo, Dept Phys Chem, Fac Sci, BIOSCOPE Grp, Orense 32004, Spain

来源：

TETRAHEDRON | 2011年 / 67卷 / 37期

关键词：

Crown ethers; Arylthiophene; Bithiophene; Imidazole; Fluorescent chemosensors; CHEQ effect; Pd2+; Cu2+; F-; 2-PHOTON ACTIVE FLUOROPHORE; FLUOROMETRIC CHEMOSENSORS; Y-TYPE; HG2+; SENSOR; PALLADIUM(II); POLYMERS; FLUORIDE; DESIGN; IONS;

D O I：

10.1016/j.tet.2011.06.106

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Novel fluorescent ionophores bearing imidazo-arylthienyl or imidazo-bithienyl pi-conjugated bridges functionalized with one or two fused benzo-15-crown-5 ethers as receptor units are reported. The sensing ability of the compounds in the presence of metallic cations (Li+, Na+, K+, Ca2+, Zn2+, Cu2+, Ni2+, Pd2+, and Hg2+) and fluoride ion was studied in MeCN/DMSO solutions by absorption and emission spectroscopy. The experimental results indicate that all compounds could act as selective fluorimetric sensors for Cu2+ and Pd2+ and also for the fluoride ion, in the case of the bis-substituted crown ether derivatives. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：7106 / 7113

页数：8

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