A novel Schiff-base as a Cu(II) ion fluorescent sensor in aqueous solution

被引：27

作者：

Gunduz, Z. Yurtman ^{[1
]}

Gunduz, C. ^{[1
]}

Ozpinar, C. ^{[2
]}

Urucu, O. Aydin ^{[1
]}

机构：

[1] Marmara Univ, Fac Arts & Sci, Dept Chem, Istanbul, Turkey

[2] Canakkale Onsekiz Mart Univ, Biga Vocat Sch, Dept Chem Technol, TR-17200 Biga, Canakale, Turkey

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2015年 / 136卷

关键词：

Chemosensor; Copper (II); Fluorescence; Schiff-base; TRANSITION-METAL-COMPLEXES; COPPER; CHEMOSENSOR; DESIGN; CU2+;

D O I：

10.1016/j.saa.2014.10.066

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A new fluorescent Cu(II) sensor (L) obtained from the Schiff base of 5,5 '-methylene-bis-salicylaldehyde with amidol (2,4-diaminophenol) was synthesized and characterized by FT-IR, MS, H-1 NMR, C-13 NMR techniques. In the presence of pH 6.5 (KHPO4-Na2HPO4) buffer solutions, copper reacted with L to form a stable 2:1 complex. Fluorescence spectroscopic study showed that Schiff base is highly sensitive towards Cu(II) over other metal ions (K+, Na+, Al3+, Ni2+, Co2+, Fe3+, Zn2+, Pb2+) in DMSO/H2O (30%, v/v). The sensor L was successfully applied to the determination of copper in standard reference material. The structural properties and molecular orbitals of the complex formed between L and Cu2+ ions were also investigated using quantum chemical computations. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1679 / 1683

页数：5

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