Benzazolate complexes of pentacoordinate nickel(II). Synthesis, spectroscopic study and luminescent response towards metal cations

被引：13

作者：

Dolores Santana, M. ^{[1
]}

Garcia-Bueno, Rocio ^{[1
]}

Garcia, Gabriel ^{[1
]}

Jose Piernas, Maria ^{[1
]}

Perez, Jose ^{[2
]}

Garcia, Luis ^{[2
]}

Lopez-Garcia, Ignacio ^{[3
]}

机构：

[1] Univ Murcia, Dept Quim Inorgan, E-30071 Murcia, Spain

[2] Univ Politecn Cartagena, Dept Ingn Minera Geol & Cartog, Area Quim Inorgan, E-30203 Cartagena, Spain

[3] Univ Murcia, Dept Analyt Chem, Fac Chem, E-30071 Murcia, Spain

来源：

POLYHEDRON | 2013年 / 61卷

关键词：

Macrocyclic ligands; Nickel; Luminescence; NMR spectroscopy; N; O ligands; SELECTIVE FLUORESCENT SENSOR; ZINC IONS; CRYSTAL-STRUCTURE; ENERGY-TRANSFER; MOLECULAR RECOGNITION; COPPER HOMEOSTASIS; ELECTRON-TRANSFER; CHARGE-TRANSFER; DONOR LIGANDS; DESIGN;

D O I：

10.1016/j.poly.2013.05.047

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

[Ni(mcN(3))(hpbY)](PF6) (1a-3b) [mcN(3) = Me-3-mcN(3) (2,4,4-trimethyl-1,5,9-triazacyclododec-1-ene); Me-4-mcN(3) (its 9-methyl derivative); hpbY = hpbm (2-(2'-hydroxyphenyl) benzimidazolate); hpbx (2-(2'-hydroxyphenyl) benzoxazolate); hpbt, 2-(2'-hydroxy phenyl)benzothiazolate] were synthesized via acid-base method and structurally characterized. The complexes exhibit moderate fluorescence intensities. Hetero-atoms of benzazole ligands present in the Ni(II) complexes influence their luminescent properties. These complexes are used for the recognition of different cations of biological and environmental interest. The study of luminescence properties of these complexes reveals that they display good sensitivity towards transition metal ions Zn-II, Cu-II and He. The complexes act as sensitive fluorescent ON OFF probe for Cu-II. Other metal ions such as Hg-II and Zn-II gave an enhanced fluorescence response. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：161 / 171

页数：11

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