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Selective Dendritic Fluorescent Sensors for Zn(II)
The Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, P.R. China
* Author to whom correspondence should be addressed.
Received: 6 April 2008; in revised form: 17 April 2008 / Accepted: 18 April 2008 / Published: 19 April 2008
Abstract: A series of dendritic 8-hydroxyquinoline (8-HQ) and 5-dialkyl(aryl)aminomethyl-8-HQ derivatives were synthesized and their fluoroionophoric properties towardrepresentative alkali, alkaline earth, group IIIA and transition metal ions wereinvestigated. Among the selected ions, Zn(II) enhanced the fluorescence of N-di-(methoxycarbonylethyl)aminoethyl-3-[4-(8-hydroxyquinolin-5-ylmethyl)piperazin-1-yl]-propanoic amide] (7) by 31-fold, while Al(III) caused enhancement to some extent. Theabsence of any significant fluorescence enhancement by the other ions examined renders 7a highly useful Zn(II)-selective fluorescent sensor.
Keywords: Dendritic; 8-hydroxyquinoline; Zn2+; fluorescence enhancement.
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MDPI and ACS Style
Wang, F.; Peng, R.; Sha, Y. Selective Dendritic Fluorescent Sensors for Zn(II). Molecules 2008, 13, 922-930.
Wang F, Peng R, Sha Y. Selective Dendritic Fluorescent Sensors for Zn(II). Molecules. 2008; 13(4):922-930.
Wang, Feng; Peng, Ruogu; Sha, Yaowu. 2008. "Selective Dendritic Fluorescent Sensors for Zn(II)." Molecules 13, no. 4: 922-930.