A novel extended architecture with 4 super(6) super(.6) super(4)topology based on mixed-valence Wells-Dawson arsenotungstate and mixed-ligand Cu(I) units

A novel inorganic-organic hybrid compound based on mixed-valence Wells-Dawson arsenotungstate and mixed-ligand Cu(I) units, Cu sub(8) super(I)(imi) sub(4)(bpy) sub(6)(H sub(2)O)[As sub(2) super(V)W sub(2) super(V)W sub(1)6uVl sub(62)] super(.2H) sub(2) ( 1) (bpy=4,4'-bipydine; imi=imidazole), h...

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Bibliographic Details
Published in:Journal of solid state chemistry 2010-09, Vol.183 (9), p.2027-2031
Main Authors: Tong, Ruizhan, Ren, Xiaoyu, Li, Zuoxi, Liu, Bin, Hu, Huaiming, Xue, Ganglin, Fu, Feng, Wang, Jiwu
Format: Article
Language:English
Subjects:
Diffraction
Emission
Infrared radiation
Single crystals
Terminals
Three dimensional
Topology
X-rays
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Summary:A novel inorganic-organic hybrid compound based on mixed-valence Wells-Dawson arsenotungstate and mixed-ligand Cu(I) units, Cu sub(8) super(I)(imi) sub(4)(bpy) sub(6)(H sub(2)O)[As sub(2) super(V)W sub(2) super(V)W sub(1)6uVl sub(62)] super(.2H) sub(2) ( 1) (bpy=4,4'-bipydine; imi=imidazole), has been hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, thermal gravimetric analysis, luminescent spectrum and single crystal X-ray diffraction. Single-crystal X-ray diffraction revealed that four terminal and three bridging oxygen atoms of the Wells-Dawson cluster are coordinated to Cu(I) ions and form an unprecedented hepta-supporting polyoxometalate. The functionalized arsenotungstates are further connected by two kinds of tridentate linkers, Imi-Cu-(bpy)-Cu-(bpy)-Cu-(bpy)-Cu-Imi and Imi-Cu-(bpy)-Cu-(bpy)-Cu-H sub(2)O, to construct a 3D framework with 4 super(6) super(.6) super(4)topology. The hybrid material has an intense emission at about 397 nm.
ISSN:0022-4596
DOI:10.1016/j.jssc.2010.07.004