• Preparation, crystal structure, and characterization of an inorganic-organic hybrid polyoxoniobate [Cu(en)2]3[Cu(en)2(H2O)]1.5[K0.5Nb24O72H14.5]2.25H2O

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      https://www.ias.ac.in/article/fulltext/jcsc/120/03/0309-0313

    • Keywords

       

      Polyoxometalates; polyoxoniobate; crystal structure; characterization.

    • Abstract

       

      An inorganic-organic hybrid polyoxoniobate compound [Cu(en)2]3[Cu(en)2(H2O)]1.5 [K0.5Nb24O72H14.5]2.25H2O (1) was synthesized by reaction of K7HNb6O$_{19}.13$H2O, Cu(CH3COOH)$_2.$H2O and en (ethylenediamine) in aqueous solution and characterized by IR, ESR spectroscopy and singlecrystal X-ray diffraction method. Structure analysis indicates that compound 1 consists of a new type polyoxoniobate anion [K0.5Nb24O72H14.5]9-, three [Cu(en)2]2+, one point five [Cu(en)2(H2O)]2+, and two point two five crystal water molecules. The structure contains N-H$\cdots$O hydrogen bonds between the coordinated ethylenediamine and the polyniobate-anion. The whole molecule possesses the $C_{3v}$ symmetry.

    • Author Affiliations

       

      Jing-Ping Wang1 Hong-Yu Niu1 Jing-Yang Niu1

      1. Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475001, PR China
    • Dates

       
  • Journal of Chemical Sciences | News

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