Issue 6, 2002
From the journal:

Journal of Materials Chemistry

Xiqu Wang,*a   Lumei Liua  and  Allan J. Jacobsona  

* Corresponding authors

a Department of Chemistry and Materials Research Science and Engineering Center, University of Houston, Houston, Texas, USA
E-mail: xiqu.wang@mail.uh.edu
Fax: 713-7432787
Tel: 713-7432780

Abstract

The new niobium phosphates Ba2[NbOF(PO4)2] (1) and Ba3[Nb3O3F(PO4)4(HPO4)](H2O)7 (2) have been synthesized in single crystal form by hydrothermal reactions at mild temperatures. Their crystal structures determined from X-ray diffraction data are based on defected derivatives of the NbO(H2O)PO4 layers found in hydrated niobium phosphate. The niobium phosphate layers in 1 or 2 can be derived by removing one half or one quarter of the NbO6 octahedra from the NbO(H2O)PO4 layer, respectively. In compound 1 the layers are separated and are held together by interlayer Ba-O and Ba-F bonds while in 2 the layers are linked by interlayer PO4 tetrahedra to form a framework structure.

Graphical abstract: Hydrothermal synthesis and structures of the novel niobium phosphates Ba2[NbOF(PO4)2] and Ba3[Nb3O3F(PO4)4(HPO4)](H2O)7

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Article information

DOI
https://doi.org/10.1039/B201701F
Article type
Paper
Submitted
15 Feb 2002
Accepted
28 Mar 2002
First published
18 Apr 2002

J. Mater. Chem., 2002,12, 1824-1827

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Hydrothermal synthesis and structures of the novel niobium phosphates Ba2[NbOF(PO4)2] and Ba3[Nb3O3F(PO4)4(HPO4)](H2O)7

X. Wang, L. Liu and A. J. Jacobson, J. Mater. Chem., 2002, 12, 1824 DOI: 10.1039/B201701F

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