A new [2]rotaxane molecular shuttle linker based on the binding of a 24-crown-8 ether macrocycle at a benzimidazole recognition site was synthesised. The shuttling dynamics of the linker were studied in solution and the structure confirmed by X-ray crystallography. A multivariate Zr(iv) MOF, , containing the new MIM linker and primary linker tetramethylterphenyldicarboxylate was synthesised and the translational motion of the molecular shuttle studied in the solid state. The use of a C enriched MIM linker allowed the dynamics of both activated and mesitylene-solvated to be elucidated by VT C CPMAS SSNMR. The incorporation of mesitylene into the pores of resulted in a significant increase in the barrier for thermally driven translation of the macrocycle.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8179482 | PMC |
| http://dx.doi.org/10.1039/d0sc06837c | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Graphene quantum dot-modified CoO/NiCoO yolk-shell polyhedrons as a polysulfide-adsorptive sulfur host for lithium-sulfur batteries.
Chem Commun (Camb)
January 2025
Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
The shuttle effect of lithium polysulfides and non-ideal reaction kinetics restrict the development of high-energy-density lithium-sulfur (Li-S) batteries. Here, we report a graphene quantum dot (GQD)-modified CoO/NiCoO yolk-shell polyhedron as a sulfur host for Li-S batteries. GQDs shorten transport pathways of electrons, while strong binding of CoO and NiCoO to LiS, LiS and LiS are demonstrated from density functional theory calculations.
View Article and Find Full Text PDFEndothelial Cpt1a Inhibits Neonatal Hyperoxia-Induced Pulmonary Vascular Remodeling by Repressing Endothelial-Mesenchymal Transition.
Adv Sci (Weinh)
January 2025
Department of Molecular Biology, Cellular Biology, and Biochemistry, Brown University, Providence, RI, 02912, USA.
Pulmonary hypertension (PH) increases the mortality of preterm infants with bronchopulmonary dysplasia (BPD). There are no curative therapies for this disease. Lung endothelial carnitine palmitoyltransferase 1a (Cpt1a), the rate-limiting enzyme of the carnitine shuttle system, is reduced in a rodent model of BPD.
View Article and Find Full Text PDFInvestigation of Metal Tellurides As Cathode Materials for High-Energy Lithium-Tellurium Batteries.
ACS Appl Mater Interfaces
January 2025
Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea.
Lithium-tellurium (Li-Te) batteries are gaining attention as a promising next-generation energy storage system due to their superior electrical conductivity and high volumetric capacity compared to sulfur and selenium. Tellurium's unique properties, such as suitable redox potential, excellent conductivity, high volumetric capacity, and greatest stability, position it as a strong candidate for negative electrode materials. This study explores the potential of metal tellurides, specifically CuTe and FeTe monolayers, as effective tellurium host materials, leveraging their polar interactions with lithium polytellurides.
View Article and Find Full Text PDFLarge Polarization Change Induced by Spin Crossover-Driven Fe(II) Ion Shuttling within a Tripodal Ligand.
J Am Chem Soc
January 2025
Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
The integration of spin crossover (SCO) magnetic switching and electric polarization properties can engender intriguing correlated magnetic and electric phenomena. However, achieving substantial SCO-induced polarization change through rational molecular design remains a formidable challenge. Herein, we present a polar Fe(II) compound that exhibits substantial polarization change in response to a thermally regulated low-spin ↔ high-spin transition.
View Article and Find Full Text PDFHigh-affinity uric acid clearance based on motile β-CD/F-127 polyrotaxane microspheres for enhanced diabetic wound repair.
Carbohydr Polym
March 2025
State Key Laboratory of Bioactive Molecules and Druggability Assessment, Institute of Biomedical Engineering, Jinan University, Guangzhou 510632, China. Electronic address:
Hyperuricemia-related diabetic wounds are notoriously difficult to treat due to elevated uric acid (UA) levels, excessive reactive oxygen species (ROS), and chronic inflammation. Current therapies often fail to address these underlying causes, underscoring the need for innovative approaches that not only clear UA but also mitigate inflammation and promote tissue regeneration. In this study, we developed a polyrotaxane-based microsphere (HPR MS) system conjugated with 4,5-diamino-2-thiouracil (DT) to achieve high-affinity UA clearance without increasing cytotoxicity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!