Recommanded Product: 3724-19-4. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 3-Pyridinepropionic acid, is researched, Molecular C8H9NO2, CAS is 3724-19-4, about Fluorescence enhancement by chelation of Eu3+ and Tb3+ ions in sol-gels. Author is Magyar, A. P.; Silversmith, A. J.; Brewer, K. S.; Boye, D. M..
Chelation of rare-earth (RE) ions is investigated as a means of enhancing the optical properties of RE-doped silica sol-gels. Two chelating agents [2,6-pyridine-dicarboxylic acid (PDC) and 3-pyridinepropionic acid (PPA)] and two different synthesis techniques are studied. Eu(PDC) gels exhibit intense 5D0 → 7F2 fluorescence in the red under UV excitation and long fluorescence lifetimes compared to Eu(PPA) gels and to gels without a chelating agent. This behavior indicates that the PDC mol. remains associated with the Eu after incorporation into the gel. Similar behavior is seen for 5D4 → 7F5 green fluorescence in Tb(PDC).
《Fluorescence enhancement by chelation of Eu3+ and Tb3+ ions in sol-gels》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(3-Pyridinepropionic acid)Recommanded Product: 3724-19-4.
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem