Results 91 to 100 of about 430,530 (226)
Responsive pillar[n]arene materials
Responsive MaterialsIntelligent materials with responsive behaviors toward external stimuli, such as light, temperature, pH, redox, and solvent have been increasingly fascinating.
De‐Hui Tuo +3 more
doaj +1 more source
A Naphthalenediimide–Imidazolium Macrocycle for Orthogonal Molecular Recognition
Chemistry – A European Journal, EarlyView.One host, two recognition modes: a naphthalenediimide–imidazolium macrocycle switches between π‐driven encapsulation and hydrogen‐bonding to bind structurally diverse molecular and metal‐complex guests. ABSTRACT A naphthalenediimide‐imidazolium macrocycle is shown to function as a dual‐site supramolecular host for orthogonal molecular recognition.
Joel Martínez‐Visiedo +2 more
wiley +1 more source
Lanthanide and transition metal complexes of nitrogen and oxygen donor macrocyclic ligands [PDF]
, 1994 This thesis is concerned with the synthesis and characterisation of altogether twenty 18- and 24-membered macrocyclic ligands, incorporating the pyridyl and phenolic substituents in the cavity, coupled with their lanthanide and transition metal complexes.
Evagorou, Evagoras George
core +3 more sources
Bambus[6]uril as a Novel Macrocyclic Receptor for the Nitrate Anion
Acta Chimica Slovenica, 2013 By using quantum mechanical DFT calculations, the most probable structure of the bambus[6]uril x NO3(-) anionic complex species was derived. In this complex having C3 symmetry, the nitrate anion NO3(-), included in the macrocyclic cavity, is bound by ...
Petr Toman +2 more
doaj
A new, deep quinoxaline-based cavitand receptor for the complexation of benzene
Acta Crystallographica Section E: Crystallographic Communications, 2019 We report the synthesis of a new macrocyclic receptor, namely 2,8,14,20-tetrahexyl-4,24:6,10:12,16:18,22-O,O′-tetrakis[2,3-dihydro-[1,4]dioxino[2,3-g]quinoxalin-7,8-diyl]resorcin[4]arene, DeepQxCav, obtained by the addition of ethylene glycol ditosylate ...
Roberta Pinalli +3 more
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Benzylic Oxidation of Pillar[5]Arene: From Homo‐ to Cross‐Conjugated Macrocyclic Systems
Chemistry – A European Journal, EarlyView.Selective benzylic oxidations of pillar[5]arene have been carried out to generate all the possible oxidized derivatives containing from one up to five carbonyl subunits. Effects resulting from the homo‐ and the cross‐conjugation within this series of compounds have been investigated in details and analyzed with the help of DFT calculations.
Jorge Juan Marco‐Guimbao +8 more
wiley +1 more source
A Trans‐1,2‐Diphenyl‐Substituted EDTA Platform for High‐Relaxivity Mn(II) MRI Probes
Chemistry – A European Journal, EarlyView.Symmetric diphenyl substitution of the EDTA backbone enhances the rigidity of the Mn(II) complex and enables strong multisite interactions, providing a versatile platform for further functionalisation and conjugation towards high‐performance Mn(II)‐based MRI contrast agents.
Federico Forgione +7 more
wiley +1 more source
InorganicsThe growing demand for gold in various high-technology applications necessitates the development of efficient and selective methods for its recovery and analysis, which can be achieved using such macrocyclic ligands as crown esters and their aza ...
Daniil N. Yarullin +4 more
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EcoEnergy, EarlyView.This review comprehensively outlines molecular modification strategies for steering CO2 electroreduction toward C2+ products, including the classification of diverse molecular structures, elucidation of their roles in microenvironment regulation, dissection of C–C coupling pathway engineering, and forward‐looking perspectives on machine learning and ...
Lingling Peng, Hanwen Liu, Tianyou Peng
wiley +1 more source
AggregateSupramolecular aggregates, formed through the highly directional and reversible noncovalent assembly of building blocks, represent a cornerstone of modern materials science, enabling the creation of complex architectures with emergent properties.
Yu‐Jie Zhu, Guang‐Yu An, Yang Yu
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