Pyrimidine based highly sensitive fluorescent receptor for Al3+ showing dual signalling mechanism

文献情報

出版日 2010-08-31

DOI 10.1039/C0OB00171F

インパクトファクター 3.876

著者

K. K. Upadhyay, Ajit Kumar

原文を見る

要旨

A new fluorescent probe (5-[(4-diethylamino-2-hydroxy-benzylidene)-amino]-1H-pyrimidine-2, 4-dione) (Receptor1) has been synthesized by the Schiff base condensation of 5-aminouracil with 4-(diethylamino)salicylaldehyde. The receptor 1 exhibits high selectively for Al3+ in DMSO as well as in aqueous solution even in the presence of biologically relevant cations such as Na+, K+, Ca2+, Mg2+, Pb2+ and several transition metal ions. The lowest detection limit for the receptor 1 was found to be 1.62 × 10−10 M with its linear response towards Al3+ in the concentration range of 1.75 × 10−9 to 3.3 × 10−8 M in DMSO. Receptor 1 is the first ever example where a single molecular probe is able to show imine (CN) isomerization inhibition along with twisted intramolecular charge transfer (TICT) in combinatorial fashion.

掲載誌

Organic & Biomolecular Chemistry

CiteScore: 3.4

自己引用率: 10.3%

年間論文数: 1041

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