Fluorescent ratiometry of tetrahomodioxacalix[4]arene pyrenylamides upon cation complexation

被引：42

作者：

Choi, JK

Lee, A

Kim, S

Ham, S

No, K ^{[1
]}

Kim, JS

机构：

[1] Dankook Univ, Inst Nanosensor & Biotechnol, Dept Chem, Seoul 140714, South Korea

[2] Sookmyung Womens Univ, Dept Chem, Seoul 140742, South Korea

来源：

ORGANIC LETTERS | 2006年 / 8卷 / 08期

关键词：

D O I：

10.1021/ol0602396

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

C-1,2-alternate tetrahomodioxacalix[4]arene pyreneamides were synthesized. Pb2+ coordination gave a quenched monomer and excimer fluorescence emission, while upon Ca2+ ion binding, the receptor provides an enhanced excimer and declined monomer emission with ratiometric response. The excimer emission spectra changes are rationalized by frontier molecular orbitals that the effective Py-Py* interaction induces emission intensity increases upon Ca2+ ion complexation, whereas there is no such interaction observed upon Pb2+ binding.

引用

页码：1601 / 1604

页数：4

共 30 条

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