Citation: ZHANG Xu, GE Ming, HECKE Kristof Van, CUI Guang-Hua. Synthesis, Crystal Structure and Catalytic Properties of a 2D Cobalt(Ⅱ) Coordination Polymer Based on Mixed Ligands[J]. Chinese Journal of Structural Chemistry, ;2015, 34(4): 599-605. doi: 10.14102/j.cnki.0254-5861.2011-0542 shu

Synthesis, Crystal Structure and Catalytic Properties of a 2D Cobalt(Ⅱ) Coordination Polymer Based on Mixed Ligands

a.
a. College of Chemical Engineering, Hebei United University, Tangshan, Hebei 063009, China;
b.
b. Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 S3, B-9000 Ghent, Belgium

Corresponding author: CUI Guang-Hua,
Received Date: 24 October 2014
Available Online: 27 January 2015
Fund Project: Project supported by the National Natural Science Foundation of China (No. 51474086) (No. 51474086)

A new Co(Ⅱ) metal-organic coordination polymer based on flexible bis(imidazole) and aromatic dicarboxylate co-ligands, namely [Co(bix)(nph)]_n (H₂nph=3-nitrophthalic acid, bix=1,4-bis(imidazole-1-ylmethyl)benzene), has been hydrothermally synthesized and characterized by elemental analyses, TG, IR spectroscopy and single-crystal X-ray diffraction. It crystallizes in the triclinic space group P1 with a=9.3767(14), b=10.1451(15), c=12.1488(17)Å, α=102.6450(10), β=108.856(2), γ=98.807(2)°, V=1035.3(3)Å³, Z=2, C₂₂H₁₇CoN₅O₆, M_r=506.34, D_c=1.624 g/cm³, μ=0.882 mm^-1 and F(000)=518. In the complex, the nph^2- ligands connect neighbouring cobalt atoms to form binuclear [Co(nph)]₂ subunits, which are linked by pairs of bix ligands to form a 2D honeycomb-like (6,3) network. In addition, the compound is further extended into a 3D supramolecular architecture by π…π stacking interactions. Moreover, the luminescence and catalytic properties of the complex are investigated.
- Co(Ⅱ) complex,
- crystal structure,
- luminescence,
- catalytic property
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