| The synthesis of materials with open-framework structure has been receiving great attention. Recent decades, many researchers have committed themselves to the synthesis of phosphates because of not only the diversity of the structures, but also the potential applications in different fields. In this thesis, ten new phosphates have been obtained.1. One new phosphates has been synthesized:[Na6(H2O)19](PO4)2·2H2O(1). Single crystal X-ray diffraction analysis shows that the compound (1) represents a 0-D structure. [Na6(H2O)19]6+ has the same structure as the classic [W6O19]2-.2. Three new phosphates which has a kind of transition metal (Zn,Co,Cd) separately have been synthesized: ZnPO4. H3O(2),CoⅢ2CoⅡ(PO4)2 (OH)2(3),Cd5 (PO4)3·OH(4). The compound (2) represents a 2-D layer structure, in which the ladder chains are connected byμ3-O atoms. In compound (3), the adjacent [Co(1A)-Co(2)-Co(1B)] layers are connected byμ2-O atoms and come into being a 3-D structure. In compound (4), {Cd(1)}3 units are linked by [PO4] to generate a 2-D layer, while the layers are further linked by [Cd(2)O6] to form a 3-D network structure.3. A new 3-D inorganic vanadophosphates Co0.50VPO5·2H2O(5) was synthesized. Structure analysis indicates adjacent layers are connected by [Co(H2O)4]2+ groups to generate a 3D framework with 8-membered ring channels.4. Four new molybdenum(V) phosphate based on the {P4Mo6} units have been synthesized: ((C4H16N3)2(C4H15N3)2(H3O)5(H2O)3NaNiⅡ[MoV6O12(PO4)4(OH)3]2(6),[Na4Ni7 Mo12 P8 O55 (OH)8]·26.5H2O(7),NiⅡ[MoV6O12(PO4)4(OH)3]2Mo2[K(H2O)]2 [Ni(H2O)]2·21H2O(8),Na7 Fe10[(Mo2O4)3(HPO4)2(PO4)2(OH)3]4(PO4)·36H2O(9). Structure analysis shows that compound (6) represents a 1-D infinite chain; Compounds (7)-(9) represent 3-D framework based on the Mo/P/M (M=Co,Ni,Fe) system.5. A new compound with wheel-shape clusters has been synthesized:[Ni(H2O)4][H16(Mo16O32)Ni16(PO4)26(H2O)12][Ni(H2O)4]2[Ni(H2O)5]2 [Ni2(H2O)8]·32H2O (10). Structure analysis indicates that wheel-shape clusters as building blocks are linked by [Ni(H2O)4],[Ni2(H2O)8],groups to form a 2-D layer.The structure of compounds are determined by single-crystal X-ray diffraction analysis,IR,TG .
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