LiBF₄‐Induced Rearrangement and Desymmetrization of a Palladium‐Ligand Assembly

Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(24)

Опубликована: Март 29, 2022

Thirteen palladium-ligand assemblies with different structures and topologies were investigated for the ability to bind lithium ions. In one case, addition of LiBF

Язык: Английский

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Interconversion of Highly Entangled Polyhedra into Concave Polyhedra by Nitrate‐Induced Ternary Coordination

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(33)

Опубликована: Май 4, 2023

Entangled (M3 L2 )n polyhedral complexes represent a unique class of supramolecular architectures that are stabilized by relatively weak metal-acetylene interactions in cooperation with conventional metal-pyridyl coordination. Counter-anion exchange these nitrate (NO3- ) ion triggered formal metal insertion between the centers, and heteroleptic ternary coordination mode acetylenic, pyridyl, donors was generated on centers. As result, main frameworks M18 L12 M12 L8 were formally extended into new series concave polyhedra having compositions M21 M13 , respectively. This transformation also resulted local disconnection highly entangled trifurcate topology framework, providing clues toward skeletal editing complex three-dimensional (3D) architectures.

Язык: Английский

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Exploiting Chirality in Confined Nanospaces

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(51)

Опубликована: Сен. 4, 2023

Spatial organization using confinement has been of great interest since the early ages supramolecular chemistry. Application such as sensing, catalysis and delivery are continuously emerging. This minireview highlights evolution chiral cages (CSC) applications in fields catalysis, sensing chiroptical properties. More detail, beside description strategies adopted for preparation cages, either purely organic architectures or prepared metal-ligand coordination bonds, recent findings on their applications, with particular attention to stereodynamic systems, presented highlight scientific interests future opportunities.

Язык: Английский

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The Biologically Inspired Abilities of Metallosupramolecular Architectures

Chemistry - A European Journal, Год журнала: 2023, Номер 29(21)

Опубликована: Янв. 23, 2023

Natural machinery such as proteins and enzymes can bind substrates perform intricate functions on these molecules. This behaviour is mediated by highly ordered but conformationally flexible structures dictated through favourable intra- intermolecular interactions. Metallosupramolecular architectures (MSAs) function synthetic that are responsive to their environment, display similar, less impressive, abilities biological counterparts. systems share the properties of molecular recognition catalysis facilitated often complex architectures. article outlines efforts use metallosupramolecular mimic machines using important recent examples from field.

Язык: Английский

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Guest Segregation in Heteromeric Multicage Systems

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Янв. 17, 2025

Dynamically interconvertible metallo-supramolecular multicomponent assemblies, coexisting orthogonally in solution, serve as simplified mimics for complex networks found biological systems. Building on recent advances controlling the nonstatistical self-assembly of heteroleptic coordination cages and heteromeric completive self-sorting, i.e., coformation multiple low-symmetry we herein describe first instance emerging functionality from a multicage system. In particular, one cage coexists equilibrium with or two different homoleptic cages, each capable preferentially encapsulating out three guests within their cavities. Guest segregation occurs under thermodynamic control can be reached following several distinct paths. Each pathway involves sequential transformations, eventually leading to same outcome. We that most mixture components (three ligands, guests, plus palladium cations) always yields an ordered, pathway-independent final state host–guest species, thus representing case simplexity self-sorted This study forms basis expanding scope dynamic transformation processes implemented Together incorporation stimuli-responsive elements other functionality, populations bioinspired applications controllable compound separation schemes, compartmentalized cascade reactions, multistep (even bifurcated) molecular information processing will become accessible.

Язык: Английский

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Palladium-based coordination cages as dynamic crosslinks in acrylamide hydrogels

Chemical Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Hydrogels with Pd n L 2 -type junctions can be obtained by photoinitiated copolymerization of palladium cages acrylamide monomers in water. The dynamic nature the cage crosslinks allows for an anion-induced switch network topology.

Язык: Английский

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Strong Upconverted Circularly Polarized Emission from a Chiral Tetrahedral Yb/Eu Cage

Dalton Transactions, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The heteropolynuclear chiral tetrahedral cages (Yb/Eu) 4 L ( R / S -BINAPO) exhibit upconverted circularly polarized luminescence (UC-CPL) via a novel Yb** → T 1 Eu* upconversion mechanism.

Язык: Английский

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Structural Rearrangement in Cyclic Cu(II) Pyridyltriazole Complexes: Oxidation of Dabco to Oxalate and CO2 Conversion to Carbonate

Molecules, Год журнала: 2025, Номер 30(7), С. 1430 - 1430

Опубликована: Март 24, 2025

Structural rearrangements in metal–organic supramolecules constructed from the coordination of Cu(II) with m-xpt (m-xylylenebis(pyridyltriazole)) are investigated upon their interaction 1,4-diazabicyclo[2.2.2]octane (dabco) and carbon dioxide-enriched air. The binuclear [Cu2(m-xpt)2]4+ complexes react dabco to produce a carbonate-bridged trinuclear complex, [Cu3(m-xpt)3(µ-CO3)]4+, an oxalate-bridged [Cu2(m-xpt)2(µ-C2O4)]2+, where carbonate oxalate likely originate CO2 dabco, respectively. complex reassembles original dimer removal ion converts treatment ascorbic acid followed by air oxidation. Similarly, polymeric [Cu(o-xpt)(PF6)]n, formed Cu(I) o-xpt (o-xylylenebis(pyridyltriazole)) coordination, undergoes oxidation CO2-enriched yield tetranuclear Cu4(o-xpt)3(μ4-CO3)(μ2-OH)(μ2-OCOCH3)4+. reaction progress is monitored UV-Vis spectroscopy, major products characterized single-crystal X-ray diffraction.

Язык: Английский

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Selection of self-assembled configurational isomers from a dynamic library via a multivariant optimization process

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Май 22, 2025

Selection of a suitable species from dynamic library in response to external stimuli is key event evolution, adaptation, and switching. The desymmetrization building blocks enables the generation configurational isomers for self-assembly, which rational approach creating complicated without increasing variety components. However, because their structural similarity, selection such challenging. Here we show an artificial molecular system two types self-assemblies are separately selected consisting 16 hexameric cube-shaped entities assembled CS-symmetric gear-shaped amphiphiles upon binding or three guest molecules. were not only by induced-fit caused molecules but also induction spatial arrangements cluster assemblies. These results indicate that mutual multivariant optimization hidden strategy create order chaos systems.

Язык: Английский

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Sulfur Dioxide Capture in Metal‐Organic Frameworks, Metal‐Organic Cages, and Porous Organic Cages

ChemPlusChem, Год журнала: 2022, Номер 87(6)

Опубликована: Фев. 19, 2022

Capture, storage and subsequent controlled release or transformation of sulfur dioxide (SO2 ) in mild conditions is still a challenge the material science field. Recent advances use porous materials have demonstrated good SO2 capture, particularly metal-organic frameworks (MOFs), cages (MOCs), organic (POCs). The striking feature these high uptake capacity reversible settings. A partially fluorinated MIL-101(Cr) stand-alone with highest chemically stable MOFs. Likewise, metal-free adsorbents like POCs exhibits behavior. adsorption characteristics three structurally functionally unique adsorbent systems are highly dependent on binding sites mode molecules. This Review has highlighted preferential to give full perspective We anticipate that it will offer valuable information progress made towards improving capture by hybrid systems.

Язык: Английский

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