Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (7): 1250.doi: 10.7503/cjcu20150903

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Synthesis and Characterization of Novel Ni(Ⅱ) Metal-organic Frameworks with Helical Crystal Structure

ZHAO Lun1,2, BAI Helong1,2, SUN Erjun2, WANG Xiaofeng1,*(), WANG Zichen1   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, China
    2. College of Chemistry, Changchun Normal University, Changchun 130032, China
  • Received:2015-11-26 Online:2016-07-10 Published:2016-06-16
  • Contact: WANG Xiaofeng E-mail:wangxf103@jlu.edu.cn

Abstract:

The multidenate 4,4'-(phenylazanediyl)dibenzoic acid(H2L) ligand and nickel(Ⅱ) ions reacted with 1,3-bis(imidazol-l-yl)benzene(bib) or 4,4-bipyridine or 1,4-bis[4-(1H-imidazol-l-yl)benzyl]piperazine(bibpip) under the solvothermal reactions, three new metal-organic frameworks with helical structure, namely{[Ni2L2(bib)2·2H2O]·5H2O}n(1), [Ni(HL)2(bpy)]n(2) and {[Ni2L2(bibpip)2·2H2O]·6H2O}n(3), were presented along with an analysis of the structural features by single-crystal X-ray diffraction. Complexes 1—3 were also characterized by FTIR spectroscopy, elemental analyses, thermal analysis and power X-ray diffraction(PXRD). The results showed that the complex 1 crystallizes in the monoclinic space group C2/c, exhibited two-dimensional(2D) layer with {42·65·8} topology structure; complex 2 crystallizes in the orthorhombic space group Fdd2, gave a 3D framework with {48·54·63} topology structure; complex 3 exhibits a 5-fold interpenetrating 3D framework with a {44·62} topology.

Key words: 4, 4'-(Phenylazanediyl)dibenzoic acid, 1, 3-Bis(imidazol-l-yl)benzene, 4, 4-Bipyridine, 1, 4-Bis[4-(1H-imidazol-l-yl)benzyl]piperazine, Metal-organic framework

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