Porphyrin-based multi-signal chemosensors for Pb2+ and Cu2+

被引：63
|
作者：
Chen, Yuting [1 ,2 ,3 ]
Jiang, Jianzhuang [1 ,3 ]
机构：
[1] Univ Sci & Technol Beijing, Dept Chem, Beijing 100083, Peoples R China
[2] Dezhou Univ, Key Lab Coordinat Chem & Funct Mat, Shandong Univ, Dezhou 253023, Peoples R China
[3] Shandong Univ, Dept Chem, Jinan 250100, Peoples R China
来源：
ORGANIC & BIOMOLECULAR CHEMISTRY | 2012年 / 10卷 / 24期
关键词：
SELECTIVE FLUORESCENT SENSOR; HYDROGEN-PEROXIDE; ZN2+; LEAD; DERIVATIVES; MOLECULES; DESIGN; PROBE; IONS; ICT;
D O I：
10.1039/c2ob25313e
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Two metal-free tetra(aryl) porphyrin derivatives modified by one and four N, N-bis(2-pyridylmethyl)amino group(s), namely porphyrin-1-DPA (1) and porphyrin-4-DPA (2) respectively, have been designed, synthesized, and characterized. Binding with Pb2+ induces a significant change in their solution color and in the ratio of two absorption/fluorescence signal peaks, rendering them the first example of porphyrin-based triple-signal optical sensors for Pb2+. Their dual-mode Cu2+-selective sensing properties via either the porphyrin fluorescence ON-OFF mechanism or metal displacement from the 1-Pb2+ complex that results in a triple-signal change clearly reveals their potential application as excellent and versatile sensors.
引用
收藏
页码：4782 / 4787
页数：6
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