Divalent manganese linked tungsten-molybdenum polyoxometalates: Synthesis, structure, and magnetic characteristics

Xiutang Zhang, Jianmin Dou, Daqi Wang, Yuexing Zhang, Yang Zhou, Renjie Li, Shishen Yan, Zhonghai Ni*, Jianzhuang Jiang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Three novel tungsten-molybdenum polyoxometalate compounds, namely H 2.5K2[Mn1.5W5.65Mo 1.35O24(H2O)4]Cl 1.5· 6H2O (1), H5K2Na[Mn 2(H2O)6(H2W9.52Mo 2.48O42)]Cl2·20H2O (2), and Na2[Mn4(H2O)14(H2W 12O42)]·16H2O (3), were prepared and characterized by elemental analysis and IR spectroscopy. Single-crystal X-ray diffraction analyses reveal their three-dimensional network composed of a framework of M7O246- or H2M 12O4210- (M = W or W/Mo) linked via divalent manganese cations Mn(H2O)n2+ (n = 2-4), with the help of potassium for 1 and 2. Magnetic measurements reveal that all the three compounds 1-3 show paramagnetic properties with a magnetic moment about the single Mn2+ cation, indicating very weak antiferromagnetic coupling between the neighboring Mn2+ cations in these three-dimensional architectures.

Original languageEnglish (US)
Pages (from-to)1699-1705
Number of pages7
JournalCrystal Growth and Design
Volume7
Issue number9
DOIs
StatePublished - Sep 1 2007

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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