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A CuL metal-organic cage (MOC) composed of amine-protected ligands forms supramolecular coordination polymers (SCPs) upon covalent post-assembly deprotection. The amorphous SCPs form by virtue of aniline-copper coordination and possess a tunable porosity based on the rate of deprotection.
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http://dx.doi.org/10.1039/d0cc05349j | DOI Listing |
J Am Chem Soc
September 2025
Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China.
In contrast to metal ions that have been routinely used to construct metal-organic frameworks (MOFs), anions have rarely been used as essential coordination centers in supramolecular organic frameworks (SOFs). In this work, we present a SOF, , based on the coordination of chloride anions and a flexible oligopyrrole. Owing to the multiple interactions between individual oligopyrrole molecules and an A-B-C-style stacking of the 2D honeycomb layers, crystalline exhibits reasonable thermal stability and retains its structure upon desolvation.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
Metal-organic frameworks (MOFs) are distinguished by their structural diversity, tunable electronic properties, and exceptional performance in various applications. Notably, the electron-donating ability of ligands significantly enhances the ligand-to-metal charge transfer (LMCT) processes within these frameworks, thereby promoting efficient charge migration. Herein, we developed two electron-rich macrocyclic ligands derived from phenothiazine- and phenoxazine-functionalized calix[3]arenes, alongside their corresponding cobalt-coordinated MOFs.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2025
Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, 100125, M., Ulugbek Str 83, Tashkent, Uzbekistan.
The title complex, [Ca(NO)(CHNO)(HO)], crystallizes with an eight-coordinate Ca ion in a distorted trigonal-dodeca-hedral coordination environment. The metal ion is coordinated to two nicotinamide ligands their carbonyl O atoms, two bidentate nitrate anions and two water mol-ecules. The nicotinamide ligands adopt a nearly geometry, while the nitrate anions and aqua ligands are arranged in a pseudo- fashion.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1RX, UK.
Porous metal-organic polyhedra (MOPs) have strong covalent and coordinate bonds that define the intrinsic pore of the cage. The intermolecular interactions between cages tend to be weaker, such that they rearrange during the solvent exchange process preceding gas sorption measurements. The reduction in crystal size that this often causes limits the availability of structural data that could enable understanding of observed gas uptake.
View Article and Find Full Text PDFChem Asian J
September 2025
Department of Chemistry, Indian Institute of Technology Bhilai, Durg, Chhattisgarh, 491001, India.
Self-healing polymeric coatings represent a transformative class of smart materials capable of autonomously or stimuli-responsively repairing mechanical or environmental damage, thereby significantly extending the operational lifespan of protected substrates. This review systematically elucidates the underlying mechanisms and chemistries enabling self-healing behavior, encompassing both extrinsic strategies such as microcapsules, microvascular networks, and corrosion inhibitor reservoirs and intrinsic approaches based on dynamic covalent (e.g.
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