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JOURNAL OF SYNTHETIC CRYSTALS ›› 2024, Vol. 53 ›› Issue (3): 534-540.

• Research Articles • Previous Articles     Next Articles

Construction and Electrochemical Properties of Co/Ni Coordination Polymer Based on Flexible Phenyldiacetate

LIN Taohai1, ZHANG Jun1, GE Qing1, ZHANG Gangqiang2, ZHANG Meili3   

  1. 1. Xinjiang Shinning Environmental Protection Energy Co., Ltd., Hami 963000, China;
    2. College of Chemical Engineering, Xinjiang University, Urumqi 830017, China;
    3. College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, China
  • Received:2023-09-28 Published:2024-04-02

Abstract: Two coordination polymers ([Co(tib)(mpda)(H2O)2]·H2O, [Ni(tib)(mpda)(H2O)2]·H2O) were synthesized based on flexible phenyldiacetic acid, and characterized by elemental analysis, infrared spectroscopy, thermogravimetric analysis and X-ray single crystal diffraction. In the structure of [Ni(tib)(mpda)(H2O)2]·H2O, the tib ligands coordinate as three nodes with Co(II) ions to form a 2D grid plane; cis-mpda ligands are attached to the 2D grid face as end-bases; through the O—H…O interaction between the mpda virgin carboxyl O and the coordinated water molecule (bond length of O1…O3 is 0.262 4 nm, ∠O5—H5A…O2=155.41°), a three-dimensional supramolecular network structure is formed. Two coordination polymers belong to the heterogeneous crystal structure. The specific surface areas of the two coordination polymers are 54 and 58 m2/g, respectively. [Ni(tib)(mpda)(H2O)2]·H2O has a complete cyclic voltammetric curve (reduction and oxidation potentials are 0.205 and 0.563 V, respectively) and good scanning rate.

Key words: flexible benzodiacetic acid, coordination polymer, hydro-thermal synthesis, crystal structure, electrochemical property

CLC Number: