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  • Title: The hydrothermal and structural chemistry of oxovanadium-arylphosphonate networks and frameworks.
    Author: Ouellette W, Wang G, Liu H, Yee GT, O'Connor CJ, Zubieta J.
    Journal: Inorg Chem; 2009 Feb 02; 48(3):953-63. PubMed ID: 19105647.
    Abstract:
    The hydrothermal reactions of NH4VO3 with the aromatic phosphonate ligands 1,4-, 1,3-, and 1,2-phenylenediphosphonic acids (H4L1, H4L3, H4L4, respectively); biphenyl-4,4'-diyldiphosphonic acid (H4L2); and 1,3,5-tris(phenyl)-4,4'-triphosphonic acid (H6L5) yielded materials of the V(x)O(y)/organophosphonate family [VO(H2L1)] (1), [VO(H2L2)] (2), [V2O2(H2O)2(L3)] x 1.5 H2O (3 x 1.5 H2O), [V2O2(H2O)2(L4)] x 2 H2O (4 x 2 H2O), and [V3O3(OH)(H3L5)2] x 7.5 H2O (6 x 7.5 H2O). The reactions were carried out in the presence of HF, and in one case, fluoride was incorporated to provide [V2F(OH)(H2O)3(L4)] x 2.25 H2O (5 x 2.25 H2O). The materials exhibit diverse structural chemistry, including the prototypical buttressed layer architecture for 1 and 2, a complex three-dimensional structure for 3, and unique two-dimensional structures for 4, 5, and 6. The structures of this oxovanadium-arylphosphonate family are quite distinct from those previously described for the V(x)O(y)/alkyldiphosphonate series.
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