A polyoxoniobate constructed from Lindqvist-type hexaniobates and copper coordinated cations.

Authors :: Wang, Guan
Ma, Pengtao
Li, fang
Wang, Jingping
Source :: Journal of Coordination Chemistry; Aug2011, Vol. 64 Issue 15, p2718-2726, 9p, 3 Diagrams, 3 Charts, 2 Graphs
Publication Year :: 2011
Abstract: A new organic–inorganic hybrid polyoxoniobate [Cu(1,3-dap)<subscript>2</subscript>(H<subscript>2</subscript>O)][(H<subscript>6</subscript>Nb<subscript>6</subscript>O<subscript>19</subscript>)<subscript>2</subscript>Cu(1,3-dap)<subscript>2</subscript>] · 4(1,3-dap)·20H<subscript>2</subscript>O (1) (1,3-dap = 1,3-diaminopropane) has been synthesized by the diffusion method and structurally characterized by elemental analyses, infrared spectrum, ultraviolet spectroscopy, and single crystal X-ray diffraction. Crystal structure analysis reveals that 1 consists of a dimeric dumbbell anion [(H<subscript>6</subscript>Nb<subscript>6</subscript>O<subscript>19</subscript>)<subscript>2</subscript>Cu(1,3-dap)<subscript>2</subscript>]<superscript>2−</superscript>, a copper coordinated cation, four 1,3-dap ligands and 20 crystal water molecules. Neighboring units are combined via hydrogen bonds forming a 3-D supramolecular framework. [ABSTRACT FROM AUTHOR]

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