Results 61 to 70 of about 5,195 (200)

Exploring Calixarene‐Based Pseudorotaxane Architectures: Threading Ammonium Axles With an Exo‐Rim π‐Functionalized Calix[6]Arene Macrocycle

open access: yesChemistry – A European Journal, EarlyView.
This research presents a novel 1,4‐π‐functionalized calix[6]arene with enhanced interactions with dialkylammonium axles. We investigate threading behavior in CDCl3, highlighting how exo‐rim π‐functionalization affects binding affinity and stereoselectivity.
Veronica Iuliano   +7 more
wiley   +1 more source

A Redox-Controllable Molecular Switch Based on Weak Recognition of BPX26C6 at a Diphenylurea Station

open access: yesMolecules, 2015
The Na+ ion–assisted recognition of urea derivatives by BPX26C6 has allowed the construction of a redox-controllable [2]rotaxane-type molecular switch based on two originally very weakly interacting host/guest systems.
Jia-Cheng Chang   +2 more
doaj   +1 more source

Amplification of integrated microscopic motions of high-density [2]rotaxanes in mechanically interlocked networks

open access: yesNature Communications, 2022
Amplifying molecular motion to macroscopic material property is attractive but challenging. Here, the authors report mechanically interlocked networks with dense rotaxane backbones whose microscopic motion is integrated into decent mechanical properties ...
Xue Yang   +7 more
doaj   +1 more source

Heterovalent, Homometallic Rings: Synthesis, Optical, and EPR Studies of {TiIV7TiIII} Complexes

open access: yesChemistry – A European Journal, EarlyView.
A new class of heterovalent, homometallic complexes is reported, based on cyclic {TiIV7TiIII} cores with oxide and carboxylate bridges between nearest neighbors. The clusters show Class II mixed‐valent behavior at room temperature, but are valence localized at low temperature.
Selena J. Lockyer   +8 more
wiley   +1 more source

Evaluation of Weak Interactions Between the Ring Component and Axle Component in [2]Rotaxanes With 1,3‐Diyne Moiety

open access: yesChemistry – A European Journal, EarlyView.
The rotaxane architecture is a powerful tool to probe weak interactions. The interaction between the ring component and the axle components was estimated by quantitative conformational analysis of the rotaxanes by 1H NMR spectroscopy. Theoretical calculations revealed that C─H⋯N interactions and steric effects would be responsible for the preferred ...
Taichi Ohseki   +6 more
wiley   +1 more source

rotaxanes

open access: yes, 2014
Citation: 'rotaxanes' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.R05416 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Scaling Up Molecular Electron Spin Qubits Around a Core‐Shell Quantum Dot

open access: yesChemistry – A European Journal, EarlyView.
Making assemblies of molecular nanomagnet (MNM) qubits is an essential step toward scalable quantum devices. Here, SH‐functionalized {Cr7Ni} antiferromagnetic rings with ability as MNM qubits were successfully grafted to the surface of fluorescent CdSe/ZnS quantum dots (QD).
Simon G. McAdams   +8 more
wiley   +1 more source

Synthesis of an Insulated Oligo(phenylene ethynylene) Dimer Through Cyclodextrin-Based [c2]Daisy Chain Rotaxane

open access: yesMolbank
Oligo(phenylene ethynylene)s (OPEs) are π-conjugated systems with promising optical, bioactive, and electrical properties, making them valuable candidates for molecular electronics and biosensors.
Susumu Tsuda   +3 more
doaj   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

open access: yesPolymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick   +2 more
wiley   +1 more source

Cyclodextrin Rotaxanes of Pt Complexes and Their Conversion to Pt Nanoparticles

open access: yesMolecules, 2020
The cationic Pt complex (Pt(NC6H4-C6H4N-(CH2)10-O(C6H3-3,5-(OMe)2)(MeN-(CH2CH2NMe2)2))+ was prepared by the reaction of alkylbipyridinium ligand with a nitrateplatinum(II) complex.
Yuji Suzaki   +2 more
doaj   +1 more source

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