In this study, we designed and synthesized three conformation-adaptive PdL- and PdL-type coordination cages based on three dihydrophenazine-based ligands with different lengths. Interestingly, the shorter ligands and self-assembled into PdL-type coordination cages while the longer ligand formed PdL-type one, mainly driven by the anion template effect. All coordination cages were confirmed through single-crystal X-ray diffraction, and their structural conformations underwent great changes compared with those of their corresponding ligands. Moreover, the conformational changes also significantly affected their photophysical and electrochemical properties which were distinct from their parent ligands.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/d3cc04864k | DOI Listing |
Chemistry
January 2025
Northwest University, College of Chemistry and Materials Science, No.1 Xuefu Road, Guodu District, 710127, Xi'an, CHINA.
The combination of supramolecular self-assemblies and polymer science has resulted in the development of soft materials with diverse properties and applications. In particular, the coordination cages of predefined shape, size, and internal cavity can be utilized intelligently as promising building units for designing responsive and smart soft materials with dual porosity, contributing to the introduction of versatile host-guest chemistry into gels. In this review, we present the recent advancements in gels incorporating coordination cages into their networks, ranging from synthesis strategies to state-of-art applications.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Institute of High Performance Polymers, Qingdao University of Science and Technology, Qingdao 266042, China. Electronic address:
Metal-organic cages (MOCs), assembled by the coordination of metal nodes with organic ligands, offer excellent solvent dispersion, functionalization potential, and abundant binding sites, making them ideal for hybrid hydrogel synthesis. Herrin, a novel Zr-MOC/CS hybrid hydrogel was developed by crosslinking Zr-based metal-organic cages (Zr-MOC) and chitosan (CS) using dibenzaldehyde-functionalized polyethylene glycol (DF-PEG) as crosslinker, marking the first instance of incorporating Zr-MOC into a hydrogel matrix. The composite hydrogel leverages the catalytic activity of Zr-MOC to convert trace HO into hydroxyl radicals (·OH), delivering enhanced antibacterial performance.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn Str. 6, 44227 Dortmund, Germany.
Dynamically interconvertible metallo-supramolecular multicomponent assemblies, coexisting orthogonally in solution, serve as simplified mimics for complex networks found in biological systems. Building on recent advances in controlling the nonstatistical self-assembly of heteroleptic coordination cages and heteromeric completive self-sorting, i.e.
View Article and Find Full Text PDFEur Spine J
January 2025
Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, China.
Purpose: To describe a novel alternative technique for C2 fixation under the concept of atlantoaxial joint distraction and fusion with intra-articular Cages, and to report its preliminary clinical outcomes.
Methods: Eighteen patients with basilar invagination and atlantoaxial dislocation underwent atlantoaxial joint distraction and fusion with intra-articular Cages. All patients had hypoplasia of the C2 isthmus prohibiting insertion of the pedicle screw.
J Am Chem Soc
January 2025
Université de Caen Normandie, ENSICAEN, CNRS, LCS, 14000 Caen, France.
Germanium is known to occupy tetrahedral sites by substituting silicon in germanosilicate zeolites. In this study, we present pioneering findings regarding the synthesis of zeolites with an MFI structure (GeMFI) incorporating a high germanium amount (16% Ge). Remarkably, the germanium atoms feature a slight electron deficiency with respect to GeO, and the typical coordination number of 4, as usually reported for the germanosilicate zeolites, is exceeded, giving rise to Ge dimers in a double-bridge configuration.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!