Synthesis and photophysical properties of dansyl-based polyamine ligands and their Zn(II) complexes

被引：35

作者：

Parola, A. Jorge ^{[1
]}

Lima, Joao Carlos

Pina, Fernando

Pina, Joao

de Melo, Joao Seixas

Soriano, Conxa

Garcia-Espana, Enrique

Aucejo, Ricardo

Alarcon, Javier

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Quim, REQUIMTE, P-2829516 Monte De Caparica, Portugal

[2] Univ Coimbra, Fac Ciencias & Tecnol, Dept Quim, P-3004535 Coimbra, Portugal

[3] Univ Valencia, Fac Farm, ICMOL, Dept Quim Organ, E-46100 Burjassot, Valencia, Spain

[4] Univ Valencia, Dept Quim Inorgan, ICMOL, Burjassot 46071, Valencia, Spain

[5] Univ Valencia, Dept Quim Inorgan, Burjassot 46100, Valencia, Spain

来源：

INORGANICA CHIMICA ACTA | 2007年 / 360卷 / 03期

关键词：

dansyl; polyamine ligands; pyridine ligands; Zn(II) complexes; chemosensors; fluorescence;

D O I：

10.1016/j.ica.2006.11.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis, potentiometric studies and photophysical properties of two new polyamine ligands (L1 and L2) possessing the dansyl chromophore were studied in aqueous 0.15 M NaCl. The compounds show the absorption and emissions bands characteristic of the dansylamide fluorophore and both present intramolecular excited state proton transfer at intermediate pH ranges. One of the ligands (L2) strongly coordinates Zn(II) leading to fluorescence quenching. A model compound (L3) of the dansyl moiety was also investigated. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1200 / 1208

页数：9

共 46 条

[11] Luminescent dendrimers as ligands for metal ions [J].