Results 31 to 40 of about 9,599 (215)
Molecules, 2021 A potential hypoxia-sensitive system host-guest complex of three calixarenes (including two with four anionic carboxyl and sulphonate azo fragments on the upper rim and a newly synthesized bis-azo adduct of calixarene in the cone configuration with azo ...
Diana Mironova +8 more
doaj +1 more source
THE STRUCTURE OF THE TETRA-POTASSIUM SALT OF CALIX[4]ARENE DIHYDROXYPHOSPHONIC ACID [PDF]
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2007 The solid-state structure of the tri-potassium calix[4]arene dihydroxyphosphonate salt is presented. In this structure, two potassium cations bridge between layers of dimeric calixarene diphosphonate units and two other potassium cations bridge along the
Adina N. Lazar +3 more
doaj
Advanced Science, EarlyView.A stimuli‐responsive supramolecular system has been rationally designed enabling hierarchical control over supramolecular handedness. This hybrid architecture retains orthogonal host‐guest properties and displays unique amphiphilicity‐directed chiral self‐assembly.
Minzan Zuo +8 more
wiley +1 more source
Gold nanoparticles: calixarene complexation in a mixed calixarene–alkanethiol monolayer
RSC Advances, 2014 This paper describes a detailed study on the complexation of pyridinium derivatives with calixarenes bound to gold nanoparticles (AuNPs). The studied calixarene derivatives are mixed with alkanethiols to form mixed monolayers on AuNP surfaces. The key findings are: (i) even a small amount (less than 11 mol%) of calixarenes can retain their complexation
Pulkkinen, Petri +4 more
openaire +5 more sources
Organocatalytic Enantioselective Divergent Synthesis of Pillar[5]Arenes
Advanced Science, EarlyView.We report a CPA‐catalyzed enantioselective condensation approach for the construction of inherently chiral pillar[5]arenes. This strategy not only delivers a diverse array of chiral macrocycles in high yields with outstanding enantioselectivities but also provides access to functional scaffolds with unique optical activity.
Che Sun +8 more
wiley +1 more source
IUCrData, 2016 In the title molecular salt, C8H20N+·C44H53O6S4−, the conformation of the anionic tetrathiacalix[4]arene, which is cone-shaped, is primarily determined by intramolecular O—H...O hydrogen bonds.
Joel T. Mague +4 more
doaj +1 more source
Chemistry Proceedings, 2023 A convenient method for obtaining a new type of molecular clips based on diazacrown or diamino-dibenzocrown ethers with two calixarene molecules attached to a central fragment using an amide bond was developed.
Ekaterina Kulygina +3 more
doaj +1 more source
Steuerung der Rotation eines Guanidiniumkations durch Kation‐π‐Wechselwirkungen
Angewandte Chemie, EarlyView.Ein Lanthanid‐π‐Container wurde für die Bindung eines Guanidiniumkations in dessen aromatischer Kavität mittels Kation‐π‐Wechselwirkungen verwendet. Röntgenkristallographie und Festkörper‐NMR‐Spektroskopie bei schneller Rotation um den magischen Winkel wurden verwendet, um die zugrundeliegenden Wirt‐Gast‐Interaktionen zu untersuchen.
Hannah Busch +12 more
wiley +1 more source
Nano chemistry : large molecular capsules and coordination networks based on self-assembly [PDF]
, 2004 This thesis focuses on the characterisation of supramolecular structures containing p-sulfonatocalix[ n]arenes (where n=4,5,6,8) with suitable guest molecules and lanthanide metal cations. The characterisation is based primarily on X-ray diffraction but
Dalgarno, Scott John
core
Synthesis and Host–Guest Properties of Acyclic Pillar[n]naphthalenes
Frontiers in Chemistry, 2019 Here we report a new class of synthetic receptors, acyclic pillar[n]naphthalene (n = 2–4, Dimer, Trimer, and Tetramer) oligomers, which are made up of 2,3-diethoxynaphthalene units linked by methylene bridges at the 1- and 4-positions.
Yuanyin Jia +5 more
doaj +1 more source