Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(19), P. 6486 - 6492
Published: Jan. 1, 2024
The chiral resolution of Zr 4 L 6 cages has been achieved using enantiopure coordination cations, and an cage-supported SOD-type supramolecular zeolite framework was prepared, which demonstrates synergistic CPL output with g lum values 1.5 × 10 −2 .
Language: Английский
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(31), P. 22036 - 22046
Published: July 23, 2024
Responsive spin-crossover (SCO) metal–organic cages (MOCs) are emerging dynamic platforms with potential for advanced applications in magnetic sensing and molecular switching. Among these, FeIII-based MOCs particularly noteworthy their air stability, yet they remain largely unexplored. Herein, we report the synthesis of two novel FeIII using a bis-bidentate ligand approach, which exhibit SCO activity above room temperature. These represent first SCO-active feature an atypical {FeN6}-type coordination sphere, uncommon compounds. Our study reveals that these sensitive to acid/base variations, enabling reversible switching solution. The presence multiple active proton sites within SCO-MOCs facilitates multisite, multilevel proton-induced spin-state modulation. This behavior is observed at temperature through 1H NMR spectroscopy, capturing subtle transitions triggered by pH changes. Further insights from extended X-ray absorption fine structure (EXAFS) theoretical analyses indicate alterations primarily result protonation deprotonation processes NH on ligands. induce changes secondary thereby modulating properties cages. capability integrate responses environmental stimuli underscores as finely tunable sensors highlights versatility switches. work paves way development materials tailored
Language: Английский
Citations
5
Chemical Synthesis, Journal Year: 2025, Volume and Issue: 5(2)
Published: Feb. 27, 2025
With the explosive growth of research focused on building units and types crystalline materials, disruptive changes in physical and/or chemical properties crystals have been discovered. As most studied subclass metal-organic frameworks, zeolitic imidazolate frameworks (ZIFs) shown huge potential a wide range applications, such as gas separation, adsorption catalysis, so on. Specifically, when formed with multivariate (MTV) linkers or multi-metallic ions, named MTV-ZIFs, they exhibit significant differences their thermodynamics, kinetics applications. Unraveling ranging from unique structures sequences to performance reaction mechanisms, is crucial further advance expand ZIFs. In this review, we discuss construction methodology classified by MTV organic nodes, identify challenges opportunities, particularly linked synthesis corresponding new chemistry. Ultimately, outline future direction designing synthesizing MTV-ZIFs our understanding these promising materials.
Language: Английский
Citations
0
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: April 28, 2025
Abstract Integrating dissimilar building units of discrete organic cages and inorganic clusters into single‐crystal supramolecular frameworks with tailored architectures synergistic functions presents a significant challenge. Here, we presented our discovery achieving such hybrids through electrostatically driven self‐assembly cationic ammonium anionic lead iodide clusters. Notably, by carefully modulating the size, shape, composition cages, have constructed an integrated porous host‐in‐host architecture. In this system, internal cage snugly resided, encapsulated within external network from This unique nested hierarchy showcased enhanced interhost interactions facilitated electrostatic forces, which intricately electronic structure outer moiety. As result, hybrid demonstrated distinguished photophysical properties, including efficient oxygen activation photothermal conversion capability, as confirmed comprehensive experimental theoretical analyses. The critical role was further systematic comparison structurally similar architecture comprising neutral amine cages. Furthermore, compartmentalized dual‐host served spatially isolated dual active sites for cascade reactions, exhibiting 33–47‐folds enhancement in activity compared to structural counterparts lacking charge cooperation.
Language: Английский
Citations
0
Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown
Published: April 28, 2025
Abstract Integrating dissimilar building units of discrete organic cages and inorganic clusters into single‐crystal supramolecular frameworks with tailored architectures synergistic functions presents a significant challenge. Here, we presented our discovery achieving such hybrids through electrostatically driven self‐assembly cationic ammonium anionic lead iodide clusters. Notably, by carefully modulating the size, shape, composition cages, have constructed an integrated porous host‐in‐host architecture. In this system, internal cage snugly resided, encapsulated within external network from This unique nested hierarchy showcased enhanced interhost interactions facilitated electrostatic forces, which intricately electronic structure outer moiety. As result, hybrid demonstrated distinguished photophysical properties, including efficient oxygen activation photothermal conversion capability, as confirmed comprehensive experimental theoretical analyses. The critical role was further systematic comparison structurally similar architecture comprising neutral amine cages. Furthermore, compartmentalized dual‐host served spatially isolated dual active sites for cascade reactions, exhibiting 33–47‐folds enhancement in activity compared to structural counterparts lacking charge cooperation.
Language: Английский
Citations
0
ChemCatChem, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 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.
Language: Английский
Citations
2
Chemical Communications, Journal Year: 2024, Volume and Issue: 60(66), P. 8748 - 8751
Published: Jan. 1, 2024
The integration of anionic Ti 4 L 6 (L = embonate) cages and π-conjugated coordination cations into ordered structures can produce high-performance nonlinear optical (NLO) materials.
Language: Английский
Citations
0
Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(19), P. 6486 - 6492
Published: Jan. 1, 2024
The chiral resolution of Zr 4 L 6 cages has been achieved using enantiopure coordination cations, and an cage-supported SOD-type supramolecular zeolite framework was prepared, which demonstrates synergistic CPL output with g lum values 1.5 × 10 −2 .
Language: Английский
Citations
0