An improved synthesis of the electron-rich N,N-chelating ligand, 2-(1-t-butyl-1H-1,2,3-triazol-4-yl)pyridine (L), has been developed by coupling t-butyl-azide with ethynylpyridine in the presence of a Cu(i) catalyst. L has been employed in the preparation of lanthanide coordination compounds having formulae [Ln(κ2-NO3)3L2] and [Eu(dbm)3L] (Ln = Eu, Tb; dbm = dibenzoylmethanate). The molecular structure of [Eu(dbm)3L] has been determined by X-ray diffraction studies. All the new complexes exhibit good photoluminescence properties and [Eu(dbm)3L] has been successfully used as the dopant for the preparation of luminescent plastic materials.
Titolo: | Luminescent europium(iii) complexes containing an electron rich 1,2,3-triazolyl-pyridyl ligand | |
Autore/i: | Scrivanti A.; Bortoluzzi M.; Morandini A.; Dolmella A.; Enrichi F.; Mazzaro R.; Vomiero A. | |
Autore/i Unibo: | ||
Anno: | 2018 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1039/c8nj01390j | |
Abstract: | An improved synthesis of the electron-rich N,N-chelating ligand, 2-(1-t-butyl-1H-1,2,3-triazol-4-yl)pyridine (L), has been developed by coupling t-butyl-azide with ethynylpyridine in the presence of a Cu(i) catalyst. L has been employed in the preparation of lanthanide coordination compounds having formulae [Ln(κ2-NO3)3L2] and [Eu(dbm)3L] (Ln = Eu, Tb; dbm = dibenzoylmethanate). The molecular structure of [Eu(dbm)3L] has been determined by X-ray diffraction studies. All the new complexes exhibit good photoluminescence properties and [Eu(dbm)3L] has been successfully used as the dopant for the preparation of luminescent plastic materials. | |
Data stato definitivo: | 2022-03-22T14:18:55Z | |
Appare nelle tipologie: | 1.01 Articolo in rivista |