Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (6): 693-699.DOI: 10.11944/j.issn.1000-0518.2017.06.160307

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A Three-Dimensional Zinc Compound Based on One-Dimensional [H2Mo4O14]n2n- Chain and Bis(pyridyl)-Bis(amide) Ligand: Synthesis, Structure and Property

LIN Hongyan(),SUN Junjun,WANG Qinglin,ZENG Ling,LIU Guocheng,LIN Jiafeng   

  1. College of Chemistry and Chemical Engineering,Bohai University,Jinzhou,Liaoning 121013,China
  • Received:2016-08-08 Accepted:2016-10-09 Published:2017-05-31 Online:2017-05-31
  • Contact: LIN Hongyan
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21501013, No.21401010)

Abstract:

A three-dimensional(3D) zinc compound [Zn(3-bpye)(H2Mo4O14)(H2O)2](3-bpye=N,N'-bis(3-pyridinecarboxamide)-1,2-ethane) based on one-dimensional(1D) [H2Mo4O14]n2n- chain was hydrothermally prepared by bis(pyridyl)-bis(amide) ligand, ammonium molybdate and zinc chloride. Structural analysis by element analysis, indrared(IR) spectroscopy, thermogravity(TG) and X-ray single-crystal diffraction(XRD) reveal that the title compound is triclinic system with P-1 space group. Its cell parameters are a=0.61310(3) nm, b=1.04750(6) nm, c=1.06540(6) nm, α=78.5540(10)°, β=77.5350(10)°, γ=89.9050(10)°, V=0.65420(6) nm3, Mr=981.47, Dc=2.491 g/cm3, Z=1, F(000)=468, R1=0.0290, ωR2=0.1068. In the title compound, 1D [H2Mo4O14]n2n- chains are linked by the Zn2+ ions to form 2D inorganic bimetallic layer [Zn(H2Mo4O14)]n. The adjacent 2D layers are further connected by the bridging ligands 3-bpye to construct 3D framework with CdSO4 topology. This zinc compound possesses strong fluorescence emission. Moreover, this compound shows remarkable photocatalytic activities for the degradation of methylene blue and rhodamine B under ultraviolet irradiation. CCDC: 1493115.

Key words: polyoxomolybdate, bis(pyridyl)-bis(amide) ligand, zinc compound, crystal structure, fluorescent property, photocatalytic activity