Results 21 to 30 of about 430,530 (226)
Uranium(III) Coordination Chemistry and Oxidation in a Flexible Small-Cavity Macrocycle [PDF]
Organometallics, 2015 U(III) complexes of the conformationally flexible, small-cavity macrocycle trans-calix[2]benzene[2]pyrrolide (L)2–, [U(L)X] (X = O-2,6-tBu2C6H3, N(SiMe3)2), have been synthesized from [U(L)BH4] and structurally characterized. These complexes show binding of the U(III) center in the bis(arene) pocket of the macrocycle, which flexes to accommodate the ...
Arnold, Polly L. +3 more
openaire +1 more source
Molecules, 2023 Traditional macrocyclic molecules encode recognition sites in their structural backbones, which limits the variation of the recognition sites and thus, would restrict the adjustment of recognition properties.
Linmeng Fan +4 more
doaj +1 more source
Cavity QED with Multilevel Atoms [PDF]
, 2005 The steady-state transmission spectrum of a cavity with two modes of orthogonal polarization strongly coupled to a single atom with multiple Zeeman states is computed. Effects due to cavity birefringence and atomic ac-Stark shifts are included.
Birnbaum, Kevin Michael
core +1 more source
Beilstein Journal of Organic Chemistry, 2023 Resorcin[4]arenes (R[4]A) are macrocyclic compounds with a cavity structure. Despite a relatively small cavity, these compounds are capable of forming complexes with small organic molecules. The current paper focuses on the synthesis of complexes between
Waldemar Iwanek
doaj +1 more source
Pseudopeptidic Macrocyclic Systems with Preorganized Cavities
, 2022 Programa de Doctorat en Química ...
openaire +6 more sources
Entry point into new trimeric and tetrameric imide-based macrocyclic esters derived from isophthaloyl dichloride and methyl 6-aminonicotinate [PDF]
, 2012 The one-step reaction of isophthaloyl dichloride with the 2-aminopyridine derivative (methyl 6-aminonicotinate) yields (i) a trimer-based macrocycle (EsIO)3 and (ii) a tetramer-based macrocycle (EsIO)4 in modest isolated synthetic yields (total of 25 ...
Gallagher, John F. +3 more
core +2 more sources
Molecular recognition using tetralactam macrocycles with parallel aromatic sidewalls
Beilstein Journal of Organic Chemistry, 2019 This review summarizes the supramolecular properties of tetralactam macrocycles that have parallel aromatic sidewalls and four NH residues directed into the macrocyclic cavity.
Dong-Hao Li, Bradley D. Smith
doaj +1 more source
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
Computational study of cavity flowfield at transonic speeds [PDF]
, 2009 In this paper, the results of a computational study on the unsteady flow features in three-dimensional empty cavities and a cavity with a store are presented.
Khanal, Bidur +8 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