Fiche publication
Date publication
janvier 2014
Auteurs
Membres identifiés du Cancéropôle Est :
Pr LEHN Jean-Marie
Tous les auteurs :
Yang QY, Pan M, Wei SC, Hsu CW, Lehn JM, Su CY
Résumé
A new semi-rigid tripodal ligand, namely 1,1',1 ''-((2,4,6-triethylbenzene-1,3,5 triyl)tris(methylene))tris(pyridin-4(1H)-one) (L1), has been prepared by direct alkylation of 4-hydroxypyridine at the nitrogen site with 1,3,5-tris(bromomethyl)-2,4,6-triethylbenzene. The tripodal ligand has been used for the assembly of a series of isomorphous lanthanide metal-organic frameworks (Ln-MOFs) [Ln(L1)center dot(NO3)(3)]center dot nH(2)O (Ln = Eu (1), Tb (2), Sm (3), Ce (4), Gd (5); n = 3 or 4) which exhibit an unusual non-interpenetrated (10,3)-d (or utp net) topology. The photophysical properties of these lanthanide MOFs have been assessed, in which the Tb3+ complex 2 displays bright green luminescence with quite high efficiency (Phi(overall) = 50%) and a long excited state lifetime (tau(obs) = 1.1ms).
Référence
Crystengcomm. 2014;16(28):6469-75.
