A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino.

A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino. Research Abstract Details 

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A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino. Abstract Text:

Yan-Qin Weng,Fan Yue,Yong-Rui Zhong,Bao-Hui Ye,

A new copper(II) fluorescent sensor 5,10,15,20-tetra((p-N,N-bis(2-pyridyl)amino)phenyl)porphyrin zinc (1) has been designed and synthesized by the Ullmann-type condensation of bromoporphyrin zinc with 2,2'-dipyridylamine (dpa) under copper powder as a catalyst as well as with K2CO3 as the base in a DMF solution. It consists of two separately functional moieties: the zinc porphyrin performs as a fluorophore, and the dpa-linked-to-zinc porphyrin acts as a selected binding site for metal ions. It displays a high selectivity and antidisturbance for the Cu2+ ion among the metal ions examined (Na+, Mg2+, Cr3+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Ag+, Zn2+, Cd2+, Hg2+, and Fe3+) and exhibits fluorescence quenching upon the binding of the Cu2+ ion with an "on-off"-type fluoroionophoric switching property. The detection limit is found to be 3.3 x 10(-7) M (3s blank) for Cu2+ ion in methanol solution, and its fluorescence can be revived by the addition of EDTA disodium solution. The design strategy and remarkable photophysical properties of sensor 1 help to extend the development of fluorescent sensors for metal ions.

A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino. Publishing Authors By Initials

YQ Weng,F Yue,YR Zhong,BH Ye,

For similar investigative techniques: chemistry, analytical: photometry: luminescent measurements: fluorometry: spectrometry, fluorescence research abstracts see: investigative techniques: chemistry, analytical: photometry: luminescent measurements: fluorometry: spectrometry, fluorescence research

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A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Inorganic chemistry

VOLUME: 46

Page Numbers: 7749-55

Journal Abbreviation:

ISSN: 0020-1669

DAY: 17

MONTH: 08

YEAR: 2007

A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino. Information

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LANGUAGE: eng

NlmUniqueID: 366543

A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino. Keywords Mesh Terms:

KEYWORDS: Spectrometry, Fluorescence

MESH TERMS: chemistry

Chemical & Substance for Abstract: A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino. Information

Substance Name: Copper

Registry Number: 7440-50-8

Grant and Affiliation Information for A copper(II) ion-selective on-off-type fluoroionophore based on zinc porphyrin-dipyridylamino.

AFFILIATION: MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.

Country: United States

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MEDLINETA: Inorg Chem

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