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Endowing Polycyclic Aromatic Hydrocarbons with Induced Supramolecular Chirality by Engineering Cation-π Interaction.
Chemistry
March 2025
Chinese Academy of Sciences National Center for Nanoscience and Technology, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CHINA.
The cation-π interaction is a crucial noncovalent binding force prevalent in many biological and chemical systems, however, are rarely reported in chiral supramolecular systems. Here, a supramolecular chiral system is reported, wherein cation-π interaction play significant roles. The interaction involves a chiral cationic palladium complex (R-Pd) co-assembling with 12 different polycyclic aromatic hydrocarbons (PAHs), resulting in the formation of supramolecular gels in mixed solvents.
View Article and Find Full Text PDFModulating the Structural Complexity of AuNCs Aggregates for Generation of Bright Luminescence.
ACS Nano
March 2025
School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
Self-assembly of coinage metal nanoclusters constitutes an important branch for the construction of bright luminescent materials. They also serve as a class of promising building blocks for the study of hierarchically organized assemblies due to their potential of generating high structural complexity. However, the strong intercluster interactions exert great difficulty and uncertainty on the modulation of the outcome aggregation structures.
View Article and Find Full Text PDFUnravelling the optical properties and self-assembly behavior of ciprofloxacin in ionic liquid environments: probing the role of cationic residues and counter anions.
Dalton Trans
March 2025
Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad, India.
This study investigated the interaction of ciprofloxacin (CIP) with three different ionic liquids (ILs) featuring distinct cationic residues (pyrrolidinium, IL, . imidazolium, IL, with bis(trifluoromethylsulfonyl)imide as the counter anion) and counter anions bis(trifluoromethylsulfonyl)imide, IL, . hexafluorophosphate, IL, with imidazolium as the cationic residue) in an aqueous environment.
View Article and Find Full Text PDFFabricating Remote-Controllable Dynamic Ionomer/CNT Networks via Cation-π Interaction for Multi-Responsive Shape Memory and Self-Healing Capacities.
ACS Appl Mater Interfaces
March 2025
The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu 610064, China.
Shape memory polymers (SMPs) with remotely controllable triggering capabilities are crucial for actuating applications in biomedical and aeronautic devices. This work presents a novel ionomer/carbon nanotube (CNT) composite network with exceptional remotely controllable shape memory effects (SMEs) and self-healing capabilities. By integrating quaternary ammonium (QA) units covalently bonded to crystalline polycaprolactone (PCL) segments through a chain extension reaction, we not only enabled the formation of ion clusters that act as netpoints in PCLQA ionomers to achieve superior SMEs, but also facilitated the generation of cation-π interactions when the multiresponsive CNTs were incorporated into the PCLQA ionomer matrix.
View Article and Find Full Text PDFOptimizing cation-π force fields for molecular dynamics studies of competitive solvation in conjugated organosulfur polymers for lithium-sulfur batteries.
Phys Chem Chem Phys
February 2025
Applied Theoretical Physics - Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany.
Lithium-sulfur (Li/S) batteries are emerging as a next-generation energy storage technology due to their high theoretical energy density and cost-effectiveness. π-Conjugated organosulfur polymers, such as poly(4-(thiophene-3-yl)benzenethiol) (PTBT), have shown promise in overcoming challenges such as the polysulfide shuttle effect by providing a conductive framework and enabling sulfur copolymerization. In these cathodes, cation-π interactions significantly influence Li diffusion and storage properties in π-conjugated cathodes, but classical OPLS-AA force fields fail to capture these effects.
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