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Issue 36, 2012
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A series of novel lanthanide carboxyphosphonates with a 3D framework structure: synthesis, structure, and luminescent and magnetic properties

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Abstract

By introduction of 1,4-benzenedicarboxylic acid as the second organic ligand, a series of novel lanthanide carboxyphosphonates with a 3D framework structure, namely, [Ln3(H2L)(HL)2(bdc)2(H2O)]·7H2O (Ln = La (1), Ce (2), Pr (3), Nd (4), Sm (5), Eu (6), Gd (7), Tb (8); H3L = H2O3PCH2NC5H9COOH; H2bdc = HOOCC6H4COOH) have been synthesized under hydrothermal conditions. Compounds 1–8 are isostructural and feature a 3D framework in which Ln(III) polyhedra are interconnected by bridging {CPO3} tetrahedra into 2D inorganic layers parallel to the ab plane. The organic groups of H2L are grafted on the two sides of the layer. These layers are further cross-linked by the bdc2− ligands from one layer to the Ln atoms from the other into a pillared-layered architecture with one-dimensional channel system along the a axis. The thermal stability of compounds 1–8 has been investigated. Luminescent properties of compounds 5–8, and the magnetic properties of compound 8 have also been studied.

Graphical abstract: A series of novel lanthanide carboxyphosphonates with a 3D framework structure: synthesis, structure, and luminescent and magnetic properties

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Article information


Submitted
16 Feb 2012
Accepted
17 Apr 2012
First published
19 Apr 2012

Dalton Trans., 2012,41, 10948-10956
Article type
Paper

A series of novel lanthanide carboxyphosphonates with a 3D framework structure: synthesis, structure, and luminescent and magnetic properties

K. Chen, D. Dong, Z. Sun, C. Jiao, C. Li, C. Wang, Y. Zhu, Y. Zhao, J. Zhu, S. Sun, M. Zheng, H. Tian and W. Chu, Dalton Trans., 2012, 41, 10948
DOI: 10.1039/C2DT30363A

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