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Coordination polymer
About: Coordination polymer is a research topic. Over the lifetime, 11988 publications have been published within this topic receiving 212219 citations.
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TL;DR: Well-aligned gamma-MnO(2) nanowires, growing along the [0 0 2] axis, have successfully been prepared by selecting an appropriate coordination polymer [[Mn(SO(4))(4,4'-bpy)(H( 2)O)(2)](n)] as precursor, and further observations show the ordered alignment of Nanowires' tops and such well-aligned nanowire provide more possible applications in lithium batteries.
Abstract: A new coordination-polymer-precursor route has been developed to synthesize nanowires under hydrothermal conditions. In the present work, well-aligned gamma-MnO(2) nanowires, growing along the [0 0 2] axis, have successfully been prepared by selecting an appropriate coordination polymer [[Mn(SO(4))(4,4'-bpy)(H(2)O)(2)](n)] as precursor. In comparison with the experimental results from other coordination-polymer precursors, it is found that only [[Mn(SO(4))(4,4'-bpy)(H(2)O)(2)](n)] is appropriate for the formation of gamma-MnO(2) crystal lattices during the process of oxidization. The IR absorption spectra of as-obtained precipitates at different reaction intervals minutely describe the reaction process, due to the different coordination abilities of ligands in the coordination polymer. More evidence about the mechanism will be further explored in the future study. Further observations show the ordered alignment of nanowires' tops and such well-aligned nanowires provide more possible applications in lithium batteries.
142 citations
TL;DR: A cobalt(II) coordination polymer with an unusual 4,4,4-connected network was hydrothermally synthesized and observed with high thermal, solvent, and pH stabilities and can serve as the first dual-responsive fluorescent chemosensor for the selective detection of acetylacetone and Cr2O72- ion in aqueous systems.
Abstract: A cobalt(II) coordination polymer with an unusual 4,4,4-connected network was hydrothermally synthesized and observed with high thermal, solvent, and pH stabilities. This polymer can serve as the first dual-responsive fluorescent chemosensor for the selective detection of acetylacetone and Cr2O72- ion (pH 3.0) in aqueous systems.
141 citations
TL;DR: The magnetothermal properties of a coordination polymer and a metal-organic framework based on Gd(3+) ions are reported and an equally large cryogenic magnetocaloric effect (MCE) is found, irrespective of the dimensionality.
141 citations
TL;DR: In this paper, a facile method to prepare Prussian Blue (PB) nanoparticles with different particle sizes was reported, and the obtained particles can be divided into three categories: small (around 20 nm), medium-sized (around 100 nm), and large (in excess of 200 nm).
Abstract: The preparation of coordination polymer nanoparticles is currently the focus of research attention because of the advantage of increasing the specific surface area. In this paper, we report a facile method to prepare Prussian Blue (PB) nanoparticles with different particle sizes. Their particle sizes have a wide range from a few dozen nanometres to a submicrometre, depending on the synthetic conditions. The obtained particles can be divided into three categories: small (around 20 nm), medium-sized (around 100 nm), and large (in excess of 200 nm). The medium-sized and large particles are formed by oriented aggregation of fine nanoparticles, showing a mesocrystal conformation (i.e., pseudo-single crystal nature). Our results strongly suggested that non-classical crystallization dominates the present system, which can help to further control and understand the crystallization process of other coordination polymers. By means of N2 gas adsorption–desorption measurements, the nanoporosity and specific surface areas for typical samples with three different particle sizes are characterized. Among these samples, medium-sized PB particles show the highest surface area of 260 m2 g−1, while large PB particles exhibit very poor porosity. The results show that the gas uptakes of coordination polymers can be adjusted by the particle size and shape.
140 citations
TL;DR: Two highly porous coordination polymers, containing rare octanuclear hydroxo-nickel clusters and long bis-pyrazolyl spacers, are shown to possess, after mild thermal treatment, lattice cavities up to 72% of the total crystal volume.
Abstract: Two highly porous coordination polymers, containing rare octanuclear hydroxo-nickel clusters and long bis-pyrazolyl spacers, are shown to possess, after mild thermal treatment, lattice cavities up to 72% of the total crystal volume.
139 citations