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Title: Hydrothermal Synthesis and Characterization of [(UO2)2F8(H2O)2Zn2(4,4'-bpy)2].(4,4'-bpy), a Mixed-Metal Uranyl Aquofluoride with a Pillared Layer Structure
Authors: Wang CM
Liao CH
Kao HM
Lii KH
Contributors: 國立臺灣海洋大學:生命科學暨生物科技學系
Date: 2005-09
Issue Date: 2018-10-15T06:10:23Z
Publisher: Inorg Chem
Abstract: Abstract: A mixed-metal uranyl aquofluoride, [(UO2)2F8(H2O)2Zn2(4,4'-bpy)2].(4,4'-bpy), has been synthesized under hydrothermal conditions and has been structurally characterized by single-crystal X-ray diffraction, infrared spectroscopy, thermogravimetric analysis, emission spectroscopy, and solid-state NMR spectroscopy. It is one of the few uranium fluoride-organic framework solids in which an organic molecule is directly incorporated into the extended structure of the metal fluoride and is the first example of mixed-metal uranium oxyfluoride incorporating an organic ligand. The structure consists of neutral layers of edge- and corner-sharing uranium-centered pentagonal bipyramids and zinc-centered octahedra, which are linked through 4,4'-bpy ligands into a 3-D framework. The 1H MAS NMR spectrum is in support of the conclusion that the occluded 4,4'-bpy molecules in the structural channels are not protonated. Crystal data: monoclinic, space group P2(1)/c, a = 9.4630(5) A, b = 22.384(1) A, c = 16.7534(8) A, beta = 91.899(2) degrees , V = 3546.7(4) A(3) and Z = 4.
Relation: 44(18) pp.6294-6298
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50561
Appears in Collections:[生命科學暨生物科技學系] 期刊論文

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