Synthesis and structural characterizations of four polyoxometalate compounds consisting of transition metals or alkaline cations as the bridging units
Document Type
Article
Publication Date
7-1-2009
Abstract
Four new polyoxometalate compounds, namely [Cu2(pyrazine)4][Cu(pyrazine)2][PMo12O40] · 2H2O (1), {[K(H2O)2]4H8PW12O44}F · 8H2O (2), H9[K2KMo36O112(H2O)34] · 35H2O (3), and H3Na3[V10O28] · 15H2O (4), were prepared and characterized by single crystal X-ray diffraction, elemental analysis and IR spectroscopy. Single crystal X-ray diffraction analysis results reveal that, in compound 1, Keggin anion of [PMoO12O40]3- is enchased in the bowl-like Cu(I)-pyrazine intervals via weak interactions between terminal oxygen atoms and cations of Cu(I). For compound 2, a three-dimensional architecture with pores of 7.70 × 7.70 Å is constructed from the anions of [PW12O44]11- cross-linked via corner-sharing alkali cations of K+. The [Mo36O112(H2O)16]12- units of compound 3 are linked to form one wave-like chain via cations of K+. Whereas, in compound 4, anions of [V10O28]3- are linked via NaO6 octahedra to form two-dimensional layer structure. On the basis of this two-dimensional layer, a three-dimensional architecture is further formed via hydrogen bonds involving edge-shared NaO6 double octahedron. © 2009 Elsevier B.V. All rights reserved.
Publication Source (Journal or Book title)
Inorganica Chimica Acta
First Page
3325
Last Page
3332
Recommended Citation
Zhang, X., Dou, J., Wei, P., Li, D., Li, B., Shi, C., & Hu, B. (2009). Synthesis and structural characterizations of four polyoxometalate compounds consisting of transition metals or alkaline cations as the bridging units. Inorganica Chimica Acta, 362 (9), 3325-3332. https://doi.org/10.1016/j.ica.2009.03.002
