Results 61 to 70 of about 13,257 (251)
Porous Organic Cages for CO2 Capture and Confined Reduction
Angewandte Chemie, EarlyView.Porous organic cages (POCs) enable the coupling of CO2 capture and conversion through the interplay of molecular structure and solid‐state organization. Beyond intrinsic cavities, packing‐dependent pore accessibility and mass transport govern local CO2 concentration and catalytic performance, linking adsorption to reactivity in integrated capture ...
Valeria Amendola, Sonia La Cognata
wiley +2 more sources
Training Process Programming of Qualified Football Players in Higher Education Establishments
Фізичне виховання, спорт і культура здоров’я у сучасному суспільстві, 2017 Relevance. Modern trends in the athletes’ training need to find new ways to improve the structure and content of different structural units of the training process.
Victor Kostiukevych, Vadym Stasiuk
doaj +1 more source
Advanced Energy Materials, EarlyView.A nickel‐free and practical synthesis strategy to poly(pyrene tetraone) and its integration with a percolated CNTs/Ketjen Black network enables stable cycling and efficient energy storage in a sodium‐based batteries. This work demonstrates how controlling polymer structure and electrode architecture improves ion transport and mitigates dissolution in ...
Md. Adil +9 more
wiley +1 more source
Macrocyclic ligands on polymers [PDF]
Pure and Applied Chemistry, 1979 Abstract The ion binding properties of linear polymers carrying crown ether ligands as pendent groups are reviewed. The polymers often exhibit selective cation binding different from that of their monomeric crown analogues. One of the polymers, poly(vinylbenzo-18-crown-6), behaves in water as a neutral polysoap and strongly interacts with organic ...
J. Smid +4 more
openaire +1 more source
Precision Switching and Coupled Motion in a [3]Rotaxane Molecular Machine
Angewandte Chemie, EarlyView.A [3]rotaxane, composed by two crown ether macrocycles and an axle presenting three recognition sites, is operated through both chemical and electrochemical stimuli. The position of the macrocycles is precisely controlled by sequential stimulation and the processes are fully reversible. The characterization of the system revealed the macrocycles affect
Leonardo Andreoni +3 more
wiley +2 more sources
Towards the Development of Orally Available Peptide Therapeutics
CHIMIA, 2021 Peptides have a number of attractive properties that make them an interesting modality for drug development, including their ability to bind challenging targets, their high target specificity, and their non-toxic metabolic products.
Xu-Dong Kong, Christian Heinis
doaj +1 more source
Acta Crystallographica Section C Crystal Structure Communications, 2004 The 20-membered ring in 1,7,11,17-tetraoxa-2,6,12,16-tetraazacycloeicosane tetrahydrochloride, C(12)H(32)N(4)O(4)(4+).4Cl(-), adopts an endo conformation, while the 18-membered ring in 1,6,10,15-tetraoxa-2,5,11,14-tetraazacyclooctadecane tetrahydrochloride, C(10)H(28)N(4)O(4)(4+).4Cl(-), lies about an inversion centre and adopts a symmetrical ...
Cox, Philip J., Kong Thoo Lin, Paul
openaire +3 more sources
Non‐Dilute Synthesis of Macrodiolides and Macrotetrolides Enabled by Confinement Catalysis
Angewandte Chemie, EarlyView.Confinement catalysis within a hexameric resorcin[4]arene capsule enables macrolactonization under non‐dilute conditions (up to 0.1 M), overcoming the limitations of high‐dilution protocols (0.1–10 mM). This strategy provides direct access to 18–32‐membered macrodiolides and 26–32‐membered macrotetrolides in one pot and unlocks previously inaccessible ...
Feng‐Yuan Wang +3 more
wiley +2 more sources
Redirecting Excited‐State Proton Transfer Through Supramolecular Polymerization in Nanoconfinement
Angewandte Chemie, EarlyView.Supramolecular confinement redirects the excited‐state proton transfer pathway of an amphoteric emitter. In water, the molecule undergoes ESPD, whereas co‐assembly with γ‐cyclodextrin forms nanotubes that template slip‐stacked emitter pairs and enable ESIMPT. Structural and photophysical characterization of the assemblies shows that the preorganization
Luis C. Pantaleone +8 more
wiley +2 more sources
Angewandte Chemie, EarlyView.Leigh's metal‐free active template‐based SNAr of an amine on halogenopyridiniums, in the presence of a crown ether, successfully afforded 4‐aminopyridinium‐containing rotaxanes. Further molecular machinery was carried out by deprotonation‐then‐carbamoylation of the conjugated amino moiety.
Ivaylo Stoyanov +2 more
wiley +2 more sources