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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: The spin state of Fe(C5H5N)2Ni(CN)4 changes from paramagnetic to diamagnetic when the temperature is lowered as discussed by the authors, while the spin state for Fe(NH3)2N(CN4)4·2C6H6 does not.
Abstract: The iron(II) spin state of Fe(C5H5N)2Ni(CN)4 changes from paramagnetic to diamagnetic when the temperature is lowered, while that of Fe(NH3)2Ni(CN)4·2C6H6 does not.
225 citations
TL;DR: The structural analyses reveal that the length of flexible bis(triazole) ligands and metal ion coordination geometries have a synergic influence on the structures of this series of Wells-Dawson polyoxoanion-based hybrid compounds.
Abstract: Through tuning the length of flexible bis(triazole) ligands and different metal ion coordination geometries, four Wells-Dawson polyoxoanion-based hybrid compounds, [Cu6(btp)3(P2W18O62)]·3H2O (1) (btp = 1,3-bis(1,2,4-triazol-1-y1)propane), [Cu6(btb)3((P2W18O62)]·2H2O (2), [Cu3(btb)6(P2W18O62)]·6H2O (btb = 1,4-bis(1,2,4-triazol-1-y1)butane) (3), and [Cu3(btx)5.5((P2W18O62)]·4H2O (btx = 1,6-bis(1,2,4-triazol-1-y1)hexane) (4), were synthesized and structurally characterized. In compound 1, the metal-organic motif exhibits a ladder-like chain, which is further fused by the ennead-dentate [P2W18O62]6− anions to construct a 3D structure. In compound 2, the metal-organic motif exhibits an interesting Cu−btb grid layer, and the ennead-dentate polyoxoanions are sandwiched by two Cu−btb layers to construct a 3D structure. Compound 3 exhibits a (42·62·82) 3D Cu−btb framework with square and hexagonal channels arranged alternately. The hexa-dentate polyoxoanions incorporate only into the hexagonal channels. In compoun...
223 citations
223 citations
TL;DR: The lanthanides are under the limelight when it comes to high technology as discussed by the authors, because of their remarkable and unmatched optical and magnetic properties, these elements are used in strategic application.
Abstract: Because of their remarkable and unmatched optical and magnetic properties, the lanthanides are under the limelight when it comes to high technology. These elements are used in strategic application...
223 citations
TL;DR: In this article, a 3D open-framework coordination polymeric polygonal poly(pymo-N1,N3)2] poly(n3) was obtained in the presence of ammonium and perchlorate ions and water molecules in the pores.
Abstract: Reaction of CuX2 (X = NO3, Cl, (SO4)1/2) salts and Hpymo·HX (Hpymo = 2-hydroxypyrimidine; X = Cl, NO3) in aqueous amine solutions (amine = NH3, CH3NH2) leads to formation of the poorly crystalline three-dimensional open-framework coordination polymer [Cu(pymo-N1,N3)2]∞ (1). Under the same reaction conditions, but in the presence of amine and group 1 metal salts of single charged voluminous anions, highly crystalline clathrates of the type {[Cu(pymo-N1,N3)2]·(AX)1/3}∞ (1·AX with A = NH4, CH3NH3, Li, K, Rb; X = ClO4, BF4, PF6) are obtained. The X-ray crystal structure of 1·NH4ClO4 reveals that the combination of square-planar Cu2+ ion with 120° bond angles provided by Hpymo generates a three-dimensional porous [Cu(pymo-N1,N3)2]∞ framework with ammonium and perchlorate ions and water molecules included in the pores. 1 possesses a rich host−guest chemistry. Indeed, N2 sorption at 77 K by empty host 1 reveals its microporous nature with a BET surface area of ca. 200 m2 g-1. Hydrated 1 loses water upon heating ...
222 citations