Chemical Research in Chinese Universities ›› 2015, Vol. 31 ›› Issue (1): 4-8.doi: 10.1007/s40242-015-4325-x

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Hydrothermal Syntheses and Characterization of Two 1D Chain Complexes and Tetra-capped Keggin Clusters

LIU Yabing1,2, DUAN Weijie2, CUI Xiaobing2, XU Jiqing2   

  1. 1. Department of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, P. R. China;
    2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2014-08-28 Revised:2014-09-29 Online:2015-02-01 Published:2014-10-20
  • Contact: LIU Yabing, E-mail:liuyab@163.com E-mail:liuyab@163.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20771030) and the Natural Science Foundation of Jilin Province, China(No.201215173).

Abstract:

Two new compounds, [Ni(en)2]{[Ni(en)2]2[MoVI6MoV2VIV8O40(SiO4)]}[(NH2)2(C2H4)2NH]·2H2O(1) and [Ni(en)2]{[Ni(en)2]2[MoVI5MoV3VIV8O40(VO4)]}(en)·H2O(2)(en=ethylenediamine), have been hydrothermally synthesized and characterized by elemental analysis, infrared(IR), X-ray photoelectron spectroscopy(XPS), electron spin-resonance(ESR) and thermogravimetric(TG) analysis and single-crystal X-ray diffraction(XRD) analysis. Both the compounds exhibit a 1D chain composed of bi-supporting tetra-capped Keggin clusters and nickle coordination fragments. The 1D chains are further assembled into a 3D supramolecular network with different packing modes via hydrogen bonds. The magnetic susceptibility of compound 1 demonstrates the presence of antiferromagnetic interactions.

Key words: Hydrothermal synthesis, Polyoxometalate, Tetra-capped Keggin cluster, Magnetic susceptibility