A Series of 3D Porous Lanthanide-Substituted Polyoxometalate Frameworks Based on Rare Hexadecahedral {Ln6W8O28} Heterometallic Cage-Shaped Clusters

Autor:	Shou-Tian Zheng, Xin-Xiong Li, Jin-Hua Liu, Yan-Qiong Sun, Dan Zhao, Jing Zhang, Rong-Tao Zhang
Rok vydání:	2019
Předmět:	Lanthanide Proton 010405 organic chemistry Chemistry 010402 general chemistry 01 natural sciences Magnetic susceptibility 0104 chemical sciences Inorganic Chemistry Crystallography Adsorption Polyoxometalate Antiferromagnetism Chemical stability Physical and Theoretical Chemistry Porosity
Zdroj:	Inorganic Chemistry. 58:14734-14740
ISSN:	1520-510X 0020-1669
Popis:	A series of 3D porous lanthanide-substituted polyoxometalate frameworks, Na2[Ln2(H2O)11]2[Ln3(H2O)3(α-SiW11O39)2]2·69H2O (1-Ln, Ln = Sm, Eu, Gd, Tb, and Dy), are built from novel hexadecahedral {Ln6W8O28} heterometallic cage-shaped clusters. Intriguingly, every tetrameric {[Ln3(H2O)3(α-SiW11O39)2]2}14- cage-cluster is linked with another eight tetrameric cage-clusters by Ln3+ cations, leading to a novel 3D inorganic porous framework, which exhibits good thermal and chemical stability, excellent water vapor adsorption capacity, and moderate proton conductive properties. Furthermore, the solid state luminescence spectra demonstrate that 1-Sm, 1-Eu, 1-Tb, and 1-Dy display the lanthanide characteristic emission bands. The temperature-dependent magnetic susceptibility indicates that there are antiferromagnetic interactions in 1-Tb and 1-Dy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::12d00321abfed1ef1d0306afb35eb85a https://doi.org/10.1021/acs.inorgchem.9b02413 Zobrazit plný text záznamu