Synthetic Route of 499-40-1, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 499-40-1, C12H22O11. A document type is Article, introducing its new discovery.
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 K2CO 3 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+, Cu 2+, Ag+, Zn2+, Cd2+, Hg 2+, 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 ¡Á 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.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics