Sensitized luminescence of lanthanides within the walls of polyethylenoxa-pillared γ-zirconium phosphate

被引：21

作者：

Brunet, E ^{[1
]}

de la Mata, MJ ^{[1
]}

Juanes, O ^{[1
]}

Rodríguez-Ubis, JC ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Fac Ciencias, Dept Quim, E-28049 Madrid, Spain

来源：

CHEMISTRY OF MATERIALS | 2004年 / 16卷 / 08期

关键词：

D O I：

10.1021/cm0353106

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pillared gamma-zirconim phosphate at low level with a diphosphonic acid resulting from the addition of pentaethyleneglycol to diethyl vinyl phosphonate was prepared and used as a porous matrix to intercalate LnCl(3) (Ln = Eu, Tb) and 2,2-bipyridyl (bpy). The uptake levels of both species in mild conditions were 0.35 and 0.10 equivalents per Zr, respectively. Strong interactions between the lanthanide ion and the polyethylenoxa chains were evidenced. Although powder XRD of the composite showed two interlayer distances (1.7 and 2.2 nm) indicating that the material was not homogeneous, excitation luminescence spectra confirmed strong lanthanide bpy-sensitized emission which was more than 50 times higher than that in nonpillared gamma-zirconium phosphate.

引用

页码：1517 / 1522

页数：6

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