The first organic-templated vanadyl(IV) gallophosphates with ambient (51)V hyperfine structure, {V(2)Ga(2)O(14)} cluster or heterometal 12-ring channels

Inorganic Chemistry
Li-Hsun HuangSue-Lein Wang

Abstract

Three new vanadyl gallium phosphates, (H(2)dap)(3)[(VO)(2)(GaO)(2)(PO(4))(4)].H(2)O (1), (H(2)dap)(1.5)[(VO)(2)(GaO)(2)(PO(4))(3)].3H(2)O (2), and (H(2)dap)[(VO)(2)Ga(4)(PO(4))(6)(H(2)O)(4)].2H(2)O (3) (dap = 1,3-diaminopropane), have been prepared under mild solvothermal conditions and characterized by single-crystal X-ray diffraction, thermogravimetric analysis, magnetic susceptibility, and EPR spectroscopy. They are the first examples of an organic/V(4+)/Ga/P/O system that displays three different dimensional structures with a common template. The 1D chain structure of 1 and the 2D layered 2 are both built up with a PO(4) and {V(2)Ga(2)O(14)} cluster which contains a syn-square pyramidal {V(2)O(8)} dimer and two GaO(4) tetrahedra. The tetrameric cluster and V-O-Ga therein are observed in a metal phosphate system. Compound 3 is composed of VO(5)(H(2)O) octahedra, GaO(4)(H(2)O) trigonal bipyramids, and GaO(4) and PO(4) tetrahedra from which a unique 3D structure containing one-dimensional 12-ring channels is constructed. The channel aperture uncommonly comprises heterometal (V, Ga) polyhedra. Magnetic susceptibility data for 1-3 are consistent with V(4+) and show a T(N) of 12 K for 3. The unusual syn-{V(2)O(8)} dimers in 1 and...Continue Reading

References

Sep 21, 2002·Chemical Communications : Chem Comm·P Feng
Jan 18, 2005·Inorganic Chemistry·Chia-Her Lin, Sue-Lein Wang
Jul 14, 2005·Journal of the American Chemical Society·Yueh-Chun LiaoSue-Lein Wang
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Apr 7, 2007·Journal of the American Chemical Society·Yu-Lun LaiSue-Lein Wang
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