Abstract
Two new two-dimensional (2D) layer coordination polymers—namely, [Cd(L)2]n (1) and [Co(L)2(H2O)]n (2)—were synthesized by the reaction of corresponding metal salts with 3-(1H-imidazol-4-yl)benzoic acid (HL) incorporating 4-imidazolyl and carboxylate functional groups, and characterized by single-crystal X-ray diffraction, elemental analysis, IR spectroscopy, and powder X-ray diffraction (PXRD). Complex 1 is a 2D network with (4, 4) topology, while 2 is a typical 63-hcb topology net. Complex 1 exhibits intense light blue emission in the solid state at room temperature.
Highlights
In the last two decades, coordination polymers have become an expanding research topic in the fields of synthetic chemistry and materials science, because of their charming architectures and intricate topologies, and their widely applications in numerous areas in fluorescence, magnetic properties, electrochemistry, gas adsorption/separation, catalysis, and so on [1,2,3,4,5,6,7,8]
The structure design methodology and properties of coordination polymers are mainly dependent on the intrinsic organic linkers [9,10], inorganic metal units, as well as the external synthesis conditions such as reaction temperatures, pH of the medium, reaction solvents, and counter anions [11,12,13]
Organic linkers with N and/or O donors have often been utilized as effective building units in the process of coordination polymers [14,15]
Summary
In the last two decades, coordination polymers have become an expanding research topic in the fields of synthetic chemistry and materials science, because of their charming architectures and intricate topologies, and their widely applications in numerous areas in fluorescence, magnetic properties, electrochemistry, gas adsorption/separation, catalysis, and so on [1,2,3,4,5,6,7,8]. The structure design methodology and properties of coordination polymers are mainly dependent on the intrinsic organic linkers [9,10], inorganic metal units, as well as the external synthesis conditions such as reaction temperatures, pH of the medium, reaction solvents, and counter anions [11,12,13]. Organic linkers with N and/or O donors have often been utilized as effective building units in the process of coordination polymers [14,15]. 4-imidazole-containing imidazole ligands and synthesized the porous coordination polymers based on the 4-imidazolate-metal building units, showing favourable gas selective adsorption property for CO2 molecules [16,17]. Two series of Cu(II) and Cd(II) coordination polymers are constructed based on 4-(1H-imidazol-4-yl)benzoic acid. As an extension of our previous work, we synthesized a new organic ligand-3-(1H-imidazol-4-yl)benzoic acid. 3-(1H-imidazol-4-yl)benzoic acid (HL) with corresponding metal salts under hydrothermal condition
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