Synthesis, crystal structure, and photochromism of novel two-dimensional supramolecular networks based on Keggin-type polyoxoanion and lanthanide coordination cations

被引：104

作者：

Zhang, H

Duan, LY

Lan, Y

Wang, EB ^{[1
]}

Hu, CW

机构：

[1] NE Normal Univ, Dept Chem, Inst Polyoxometalate Chem, Changchun 130024, Jinlin, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian 350002, Peoples R China

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 24期

关键词：

D O I：

10.1021/ic0343962

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three new compounds [Ln(NMP)(4)(H2O)(4)][HxGeMo12O40].2NMP.3H(2)O (Ln = Ce-IV (1), Pr-IV (2), x = 0; Ln = Nd-III (3), x = 1; NMP = N-methyl-2-pyrrolidone) have been prepared in aqueous solution and characterized by elemental analyses, IR, UV-vis, and TG analyses. The single crystal X-ray diffraction shows that all three compounds are isostructural. In their structures, an interesting two-dimensional supramolecular network is constructed by the [GeMo12O40](4-) anion and [Ln(NMP)(4)(H2O)(4)](3+/4+) cation building blocks via hydrogen-bonding interactions, exhibiting the porous structure. Upon irradiation with UV light, the crystals of 1-3 show photochromic behavior.

引用

页码：8053 / 8058

页数：6

共 32 条

[1] Crystal structure and replacement reaction of coordinated water molecules of the heteropoly compounds of sandwich-type tungstoarsenates [J].