Recent progress of chiral metal–organic frameworks in enantioselective separation and detection

Microchimica Acta, Год журнала: 2024, Номер 191(11)

Опубликована: Окт. 2, 2024

Язык: Английский

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Metal‐Organic‐Cages: Synthetic Strategies and Photocatalytic Application

ChemCatChem, Год журнала: 2024, Номер unknown

Опубликована: Сен. 20, 2024

Abstract Metal‐organic cages (MOCs) are a class of compounds formed through the coordination metal ions with organic ligands to create well‐defined and cage‐like structure. These unique structures offer versatile environments for catalyzing wide range chemical reactions. The catalytic capabilities MOCs significantly influenced by nature ions, functional ligands, cage Notably, confined spaces within can lead enhanced reaction efficiencies, particularly in processes such as light‐induced hydrogen generation photocatalytic reduction CO₂. Furthermore, show great potential photo‐organic synthesis due structure, which provides environment allows encapsulating molecules, making them useful improving selectivity efficiency process. This review reports development photocatalysis, focusing on structural design regulation strategy build production, CO 2 reduction, transformation. Insights into photocatalysis discussed including challenges further research direction MOC‐based photocatalysis.

Язык: Английский

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Solvent-Directed Social Chiral Self-Sorting in Pd₂L₄ Coordination Cages

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(47), С. 32748 - 32756

Опубликована: Ноя. 17, 2024

A family of Pd2L4 cages prepared from ligands based on an axially chiral diamino-[1,1′-biazulene] motif (serving as a unique azulene-based surrogate the ubiquitous BINOL moiety) is reported. We show that preparing cage starting racemate shorter bis-monodentate ligand derivative, equipped with pyridine donor groups, leads to integrative ("social") self-sorting, exclusively yielding meso-trans product, but only in selection solvents. This phenomenon driven by individual solvent molecules acting hydrogen bonding tethers between amino groups neighboring ligands, thereby locking final coordination single isomeric form. The experimental (solvent-dependent NMR, single-crystal X-ray diffraction) observations this cooperative interaction could be explained computational analyses when explicit solvation was considered. Furthermore, we larger isoquinoline donors, which, unlike first one, does not undergo social self-sorting its racemic mixture, further highlighting importance solvents bridging short distances groups. Homochiral formed ligand, however, furnish cavity can bind anionic and neutral metal complexes such [Pt(CN)6]2– Cr(CO)6 discriminate two enantiomers guest camphor sulfonate.

Язык: Английский

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Chiral Self‐Sorting Directed Supramolecular Organic Framework of Imine Cages for Iodine Capture

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract Supramolecular organic frameworks (SOFs) with nanotubular pores, assembled through weak non‐covalent interactions, are highly sought‐after for storage, separation, and pollutant capture but limited. Herein, a SOF chiral imine cage is reported by leveraging kinetically driven dynamic covalent chemistry, self‐sorting, dispersion interactions efficient iodine capture. The crystallization‐driven synthesis involves triamine racemic mixture of axially dialdehyde equipped in bimesityl (BM) skeleton that undergoes narcissistic self‐sorting to form homochiral (BM‐PIC) enantiomers, which result the (BM‐PIC‐SOF). Notably, excess drives into heterochiral cages favorable solvent. BM‐PIC‐SOF templated solvent molecules features pores (1.4 nm) stabilized notably, forces between mesitylene rings. Further, kinetic crystals BM‐PIC‐SOF, upon exchange volatile solvents, undergo single‐crystal‐to‐single‐crystal transformation at high temperature thermodynamic polymorph large structural difference. demonstrates remarkable efficacy adsorbing not only from vapor (6.0 g.g −1 ) also (3.88 aqueous mediums (5.01 g ).

Язык: Английский

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Chiral Amplification and Regulation: Design and Applications of Circularly Polarized Luminescence‐Active Materials Derived From Macrocyclic Compounds

Aggregate, Год журнала: 2025, Номер unknown

Опубликована: Май 9, 2025

ABSTRACT Chirality is a fundamental property in molecules and biological systems, characterized by asymmetric configurational features. Circularly polarized luminescence (CPL) materials have gained significant attention due to their unique optical activities, with applications 3D displays, chiral sensors, catalysis, more. Chiral transfer amplification typically involve the generation of chirality excited state, facilitated interactions like energy transfer, electron or induction. Supramolecular self‐assembly strategies, particularly macrocyclic compounds, enable linking achiral luminescent units through intermolecular interactions. Macrocyclic hosts—cyclodextrins, calix[ n ]arenes, pillar[ cyclophanes, cucurbit[ ]urils—are especially promising stable structures adjustable cavities for guest encapsulation. These compounds induce photophysical properties host–guest complexation, making them ideal constructing amplification, CPL‐active materials. This review summarizes advancements multicolor CPL materials, sensing, induction, separation, highlighting potential supramolecular material design. The challenges future directions this field are also discussed, aiming guide further research application systems.

Язык: Английский

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Advancements in Luminescent Metal-Organic Cages: Applications and Future Prospects

Science for energy and environment., Год журнала: 2024, Номер unknown, С. 8 - 8

Опубликована: Ноя. 1, 2024

Review Advancements in Luminescent Metal-Organic Cages: Applications and Future Prospects Osama Younis 1,2,*, Xiangyun Xiao 1, Jianxun Yang 3, Kamal I. Aly 4, Etify A. Bakhite Xinchun 1,* 1 Institute of Technology for Carbon Neutrality, Shenzhen Advanced (SIAT), Chinese Academy Sciences (CAS), 518055, China 2 Chemistry Department, Faculty Science, New Valley University, El-Kharga 72511, Egypt 3 Three Gorges Daofu Renewables Co., Ltd. Ganzi 626700, 4 Assiut Asyut 71516, * Correspondence: [email protected] (O.Y.); [email protected] or [email protected] (X.Y.) Received: 19 September 2024; Revised: 12 October Accepted: 25 Published: November 2024 Abstract: Researchers worldwide are developing innovative luminescent systems with exceptional features like high sensitivity. frameworks based on aggregation-induced emission (AIE) have emerged as promising candidates various applications. Over the past decade, porous materials metal-organic cages (MOCs) incorporating AIE luminogens (AIEgens) demonstrated performance. Chirality plays a significant role specific non-racemic systems, particularly circularly polarized luminescence (CPL). Chiral organic coordinated metals, including MOCs, gained importance they combine ligands coordination-bonded metal centers, enabling design novel structures CPL. These shown exciting potential applications fields CPL-OLED, chiral recognition, sensing. This review article provides an overview recent progress emissive materials, specifically their possible Additionally, focuses AIEgen-based cages, CPL-active non-AIEgen-based practical sensing enantioselectivity, future prospects. Key challenges AIE-based POCs MOCs include limited stability, affecting use wide-surface thin films, need to understand molecular structure topology impacts. efforts should enhance efficiency explore sensing, supramolecular assemblies, bioimaging, optoelectronics, driving innovation smart materials.

Язык: Английский

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Improving the Cellular Internalization of Zr(IV) Nanocages by Tuning Hydrophilicity and Lipophilicity

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Nanoscale molecular materials have emerged as a new class of compounds at the nanometer scale with well-defined chemical structures, remarkable uniformity and high reproducibility. Among these materials, zirconium-based metal-organic cages (MOCs) attracted significant attention due to their exceptional stability applications in catalysis, recognition separation so on. However, poor water solubility impedes biomedical applications. In this study, decorating ligand Ru(II) complexes can not only improve but also endow bright red fluorescence large Stokes shift (180 nm). Notably, butyl-modification cyclopentadiene rings significantly enhance cell uptake (100 folds) nanocages via actin- dynamin-mediated endocytosis. The unique advantages easy modifiability make them highly promising candidates for diverse biological

Язык: Английский

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Improving the Cellular Internalization of Zr(IV) Nanocages by Tuning Hydrophilicity and Lipophilicity

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Abstract Nanoscale molecular materials have emerged as a new class of compounds at the nanometer scale with well‐defined chemical structures, remarkable uniformity and high reproducibility. Among these materials, zirconium‐based metal‐organic cages (MOCs) attracted significant attention due to their exceptional stability applications in catalysis, recognition separation so on. However, poor water solubility impedes biomedical applications. In this study, decorating ligand Ru(II) complexes can not only improve but also endow bright red fluorescence large Stokes shift (180 nm). Notably, butyl‐modification cyclopentadiene rings significantly enhance cell uptake (100 folds) nanocages via actin‐ dynamin‐mediated endocytosis. The unique advantages easy modifiability make them highly promising candidates for diverse biological

Язык: Английский

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Efficient Self‐assembly of Isoquinoline‐Based Triply Interlocked Cages

Chinese Journal of Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

Comprehensive Summary Triple interlocked systems represent highly intricate topological structures, formed by entwining two mechanically cages. Achieving controlled and straightforward construction of these aesthetic topologies continues to pose an enduring challenge. Herein, we employ a coordination‐driven self‐assembly strategy, capitalizing on non‐covalent interactions in conjunction with half‐sandwich metal units meticulously designed isoquinoline‐based ligands, achieve the effective organometallic cages 1 2 . The resulting triple system's formation architecture were validated single‐crystal X‐ray diffraction, electrospray ionization mass spectroscopy, comprehensive NMR tests. Independent Gradient Model (IGM) more intuitively demonstrates multiple stacking within cage compounds, while planarity analysis elucidates self‐adaptability ligands their tunable conformations.

Язык: Английский

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