2022
DOI: 10.1039/d1dt03502a
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Hetero-interpenetrating porous coordination polymers

Abstract: The interpenetration of porous coordination polymers is an appealing phenomenon; this Frontier article highlights hetero-IPCPs according to the structural features of individual networks involving the framework topology and chemical composition.

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Cited by 3 publications
(3 citation statements)
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“…Two different kinds of channels with very irregular cross sections of about 8–10 Å in width appear to run along [100]. Considering now the anionic part, four of the inequivalent U VI sites and six of the inequivalent tdc 2– ligands, all bis­(κ 2 O , O ′)-chelating, are found within two inequivalent (but very similar), nearly planar diperiodic [(UO 2 ) 2 (tdc) 3 ] n polymer units with hcb topology and uranium atoms as 3-c nodes, a usual feature with this ligand. The large size of the hexanuclear cells in the uranyl ion complexes with tdc 2– allows for frequent occurrences of interpenetration or polycatenation. , With nearly planar sheets as observed here, 2D + 2D → 3D inclined polycatenation has been found, while undulated sheets are associated with 2- or 3-fold 2D + 2D parallel interpenetration. ,, However, a novel mode of association is found here, the cationic framework and anionic layers being associated through 2D + 3D heterointerpenetration, the two components having both different periodicities (hence topologies) and compositions (Figure b,c). The inequivalence of the different anionic layers arises from differences in their environment; when viewed down [100], where the sheets are seen edge-on, they make groups of four closely packed with one another, with a larger separation between groups.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Two different kinds of channels with very irregular cross sections of about 8–10 Å in width appear to run along [100]. Considering now the anionic part, four of the inequivalent U VI sites and six of the inequivalent tdc 2– ligands, all bis­(κ 2 O , O ′)-chelating, are found within two inequivalent (but very similar), nearly planar diperiodic [(UO 2 ) 2 (tdc) 3 ] n polymer units with hcb topology and uranium atoms as 3-c nodes, a usual feature with this ligand. The large size of the hexanuclear cells in the uranyl ion complexes with tdc 2– allows for frequent occurrences of interpenetration or polycatenation. , With nearly planar sheets as observed here, 2D + 2D → 3D inclined polycatenation has been found, while undulated sheets are associated with 2- or 3-fold 2D + 2D parallel interpenetration. ,, However, a novel mode of association is found here, the cationic framework and anionic layers being associated through 2D + 3D heterointerpenetration, the two components having both different periodicities (hence topologies) and compositions (Figure b,c). The inequivalence of the different anionic layers arises from differences in their environment; when viewed down [100], where the sheets are seen edge-on, they make groups of four closely packed with one another, with a larger separation between groups.…”
Section: Resultsmentioning
confidence: 99%
“…These zwitterionic species have seldom been used in coordination chemistry, the Cambridge Structural Database (CSD, version 5.43) , giving as the only reported crystal structures those of the Na + and Hg II complexes of both L1 and L2 , and of three lanthanide cation complexes of L2, , but none involving actinide cations nor a mixture with anionic carboxylate ligands. The complexes described herein with these nonaromatic ligands of enhanced flexibility display variable periodicities and they range from discrete, molecular complexes to triperiodic frameworks, the latter providing a novel example of framework interpenetration and a unique case of heterointerpenetration in uranyl chemistry.…”
Section: Introductionmentioning
confidence: 99%
“…A variety of transition metal complexes (TMCs) serving as UIs have been identified in recent years. Cu-based TMCs show stronger urease inhibitory efficacy than other metal-based TMCs . Meanwhile, coordination polymers (CPs) are a class of hybrid materials composed of organic linkers and bridging metal ions or clusters. They have variable pore size, a high specific surface area, and strong biocompatibility. The CP contains both metal and organic ligands and exhibits excellent water stability, making it suitable as a UI . More importantly, copper is an effective UI, but excessive copper absorption by plants can cause physiological and metabolic disorders as well as growth and development arrest, resulting in toxic effects.…”
Section: Introductionmentioning
confidence: 99%