Results 31 to 40 of about 6,769 (240)
A Linear Chain of Water Molecules Accommodated in a Macrocyclic Nanotube Channel [PDF]
, 2016 A macrocyclic tetramer of 2-phenyl-1,3,4-oxadiazole was synthesized, and its self-assembly was investigated. The macrocycle was stacked to form a one-dimensional (1D) columnar structure containing water molecules.
Katsuya Sako (2398243) +8 more
core +3 more sources
5,7,7,12,14,14-Hexamethyl-4,11-diaza-1,8-diazoniacyclotetradeca-4,11-diene bis(methanesulfonate)
IUCrData, 2016 In the title molecular salt, C16H34N42+·2CH3SO3−, the centrosymmetric macrocyclic molecule has all four N atoms oriented towards the inside of the cavity, similar to its conformation in metal complexes. The conformation of the ethylenediamine fragment is
Katherine Spendel +1 more
doaj +1 more source
Macrocyclic Chiral Receptors toward Enantioselective Recognition of Naproxen [PDF]
, 2016 A macrocyclic receptor based on a bischromenylurea and an α,α‘-(o,o‘-dialkyl)diphenyl-p-xylylenediamine spacer provides a C2 chiral cavity to associate carboxylates by H-bonds.
Silvia González (259583) +5 more
core +1 more source
Cyclodextrin-Based Host–Guest Supramolecular Nanofibrous Composite for Biomedical Applications
Chemistry Proceedings, 2022 Cyclodextrins (CDs) are macrocyclic oligosaccharides, containing between six and eight alpha(1 → 4)-linked glucopyranoses. CDs have a hydrophobic cone-shaped internal cavity and a hydrophilic exterior surface.
Salim Ullah +9 more
doaj +1 more source
Intramolecularly Hydrogen-Bonded Aromatic Pentamers as Modularly Tunable Macrocyclic Receptors for Selective Recognition of Metal Ions [PDF]
, 2015 Despite the tremendous progress that has been made in macrocyclic chemistry since the discovery of corands, cryptands, and spherands more than four decades ago, macrocyclic systems possessing a high level of controllability in structural configuration ...
Chang Sun (1235763) +4 more
core +1 more source
Macrocyclic Influences in CO2 Uptake and Stabilization [PDF]
, 2016 Two 24-member diamine-tetraamido macrocycles (R = H and CH3), readily synthesized in one or two steps, were found to react with CO2 rapidly and efficiently (100% conversion within 1 min at rt).
Victor W. Day (1312500) +2 more
core +3 more sources
Tetrakis(imidazolium) macrocyclic receptors for anion binding. [PDF]
, 2005 New (tetrakis)imidazolium macrocyclic receptor systems of variable cavity size have been synthesised by stepwise alkylation reactions of bis(imidazolium) precursor compounds. Proton NMR titration studies reveal the macrocycles to strongly bind halide and
Paul, RL +5 more
core +1 more source
Chemical Physics Impact, 2021 Intracellular localization of small molecule organic fluorescent probes by supra-molecular control is a fascinating approach. Here, we report an adamantane conjugated nitrobenzoxadiazole (NBD-Ad)-based fluorescent probe that efficiently labels the ...
Tanoy Dutta +2 more
doaj +1 more source
Journal of Analytical Methods in Chemistry, 2016 The protonation constants of new group of peptidomimetic cyclophanes with valine or phenylalanine moieties incorporated into the macrocyclic skeleton as well as their linear analogues were determined by potentiometric measurements in solutions of ...
Piotr Seliger +3 more
doaj +1 more source