A zinc-based one-dimensional (1D) coordination polymer ([Zn(Hmpca)(tfbdc)(HO)], Zn-ODCP) has been synthesized and characterized by spectroscopic and physicochemical methods, single-crystal X-ray diffraction, and thermogravimetric analysis (Hmpca = 3-methyl-1H-pyrazole-4-carboxylic acid; Htfbdc = 2,3,5,6-tetrafluoroterephthalic acid). Zn-ODCP shows blue luminescence in the solid state. When Zn-ODCP acts as an anode material for lithium ion batteries, it exhibits a good cyclic stability and a higher reversible capacity of 300 mAh g at 50 mA g after 50 cycles. The higher capacity may be mainly ascribed to the metal ion and ligand all taking part in lithium storage. Searching for electrode materials of lithium ion batteries from 1D metal coordination polymers is a new route.

A three-dimensional (3D) copper-based coordination polymer, ([Cu(H 2 mpca)-(tfbdc)], Cu-CP; H 2 mpca = 3-methyl-1H-pyrazole-4-carboxylic acid; H 2 tfbdc = 2,3,5,6tetrafluoroterephthalic acid), has been synthesized and characterized by IR spectroscopy, thermogravimetric analysis, elemental analysis, and single-crystal X-ray diffraction. In Cu-CP, each Cu(II) ion is located in a triangular bipyramid geometry, and these Cu(II) ions are linked by tfbdc 2− ligands to produce a 3D network. Variable-temperature magnetic susceptibility data display that weak antiferromagnetic interactions between the adjacent Cu (II) ions exist in Cu-CP. Cu-CP was evaluated as an electrode material for supercapacitors. It displayed a higher specific capacitance of 735 F g −1 in 1 M KOH solution at a current density of 1 A g −1 and remained at 375 F g −1 after 1500 cycles at 2 A g −1 .

For the development of supercapacitors with higher energy densities, metal-organic frameworks (MOFs),

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It is of great significance for the sustainable development of society to search for novel coordination polymer-based electrode materials of lithium ion batteries. Herein, a two-dimensional coordination polymer, )-tetraone; DMF = dimethylformamide), was synthesized and first used as a cathode material of lithium ion batteries. The Cu-CP electrode displayed a better cycling stability and the specific capacity of 40.3 mA h g −1 at 50 mA g −1 after 50 cycles along with a Coulombic efficiency of 96.7%. The electrochemical study for the Cu-CP electrode reveals that both Cu(II) ions and 4-DTBPT ligands may be involved in the electrochemical reaction during charge and discharge. Our work demonstrates again that it is a feasible way to utilize the interaction of metal ions and organic ligands with redox activity for constructing coordination polymers acting as the cathode materials for lithium ion batteries.