Results 11 to 20 of about 430,530 (226)

Supramolecular Allostery Achieves Tunable Luminescence Aromatic Bridged Phenothiazine Noncovalent Frameworks. [PDF]

open access: yesAdv Sci (Weinh)
Tunable luminescent supramolecular organic framework enabled by multiple allosteric effects, composed of a tetracation vinylphenylpyridinium‐modified aromatic‐bridged phenothiazine guest and cucurbit[8]uril, not only exhibits unique guest oxidation‐driven NIR luminescence blue‐shift and effectively enhances the quantum yield by 46‐fold to 22.2% but ...
Lu X, Chen J, Yu J.
europepmc   +2 more sources

Analysis and control of resonant cavity flows [PDF]

open access: yes, 2013
Recently, the trend for the internalisation of stores within an aircraft fuselage has led to a renewed interest in the field of cavity aero-acoustics.
Roberts, David
core   +7 more sources

Bis-urea macrocycles with a deep cavity [PDF]

open access: yesChemical Communications, 2015
Two bis-urea macrocycles with a deep cavity demonstrate an enzyme-like binding, and the influence of dipole alignments on molecular recognition.
Huang, Guabao   +7 more
openaire   +3 more sources

Proton in the ring: spectroscopy and dynamics of proton bonding in macrocycle cavities

open access: yesPhysical Chemistry Chemical Physics, 2021
Protons confined in the ring cavities of crown ethers form dynamic proton bonds that migrate to  varying pairs of coordinating atoms, at a rate depending on electronegativity and on the flexibility of the macrocycle backbone.
Francisco Gámez   +4 more
openaire   +4 more sources

Synthesis and complexes of a constrained-cavity Schiff-base dipyrrin macrocycle

open access: yesDalton Transactions, 2021
A one-pot cyclisation/oxidation process results in a new constrained-cavity Schiff-base dipyrrin macrocycle and allows access to Li, Fe, and Zn complexes of this unique chromophore.
Karlotta van Rees, Jason B. Love
openaire   +3 more sources

Self-Assembled metallomacrocycles that function as sensors and molecular devices [PDF]

open access: yes, 2013
This thesis describes the synthesis of macrocyclic trinuclear ruthenium(II) “bowls” that incorporated 9-methyladenine, 9-benzyl-9H-purin-6-amine, 9-ethyladenine and 9-(4-methoxybenzyl)-9H-purin-6-amine as ligands with good yields and high purities ...
Zubi, Ahmed
core   +5 more sources

Synthesis and trivalent lanthanide ion complexation studies of new macrocyclic receptors based lactam ionophores [PDF]

open access: yes, 2014
This study is the first report on the design, synthesis and photophysical properties of three new macrocyclic receptors based receptors containing two amide bridges. Their binding properties towards trivalent lanthanide ions such as La3+, Gd3+, Tb3+, Dy3+
Bayrakci, Mevlut   +4 more
core   +1 more source

An Engineered Supramolecular Pathway for Enhanced Electrochemiluminescence [PDF]

open access: yesAdvanced science
A supramolecular electrochemiluminescent (ECL) system is presented in which cucurbit[7]uril (CB7) is covalently linked to [Ru(bpy)3]2+, forming a recognition‐responsive emitter. Host‒guest preorganization of tri‐n‐propylamine enables intramolecular ECL, boosting intensity by 162% compared to the standard system.
Balli M   +7 more
europepmc   +2 more sources

Fluorenonophane chlorobenzene solvate: molecular and crystal structures

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2021
The title compound, 19H,79H-3,5,9,11-tetraoxa-1,7(2,7)-difluorena-4,10(1,3)-dibenzenacyclododecaphane-19,79-dione (fluorenonophane), exists as a solvate with chlorobenzene, C42H28O6·C6H5Cl.
Viktoriya V. Dyakonenko   +4 more
doaj   +1 more source

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