Results 11 to 20 of about 5,563 (208)

Synthesis, characterization and crystal structure of a new tetraaza macrocycle with m-xylyl spacer [PDF]

open access: yesشیمی کاربردی روز, 2018
The new [2+2] macrocyclic ligand with N4 donor set, from the [2+2] condensation of benzene-1,3-dicarboxaldehyde and 2,2- dimethylpropylenediamine  was synthesized by high dilution method and confirmed by IR, 1H NMR, 13C NMR, elemental analysis and ...
Marjan Abedi
doaj   +1 more source

Towards nanomaterials with tubular pores: synthesis and self-assembly of bis-pillar[5]arene

open access: yesChimica Techno Acta, 2023
Recently, materials obtained using supramolecular chemistry approaches, and, in particular, spatially preorganized macrocyclic compounds, have attracted close attention of the researchers.
Dmitriy N. Shurpik   +4 more
doaj   +1 more source

3,7,11,19,23,27-Hexaazatricyclo[27.3.1.113,17]tetratriaconta-1(32),13,15,17(34),29(33),30-hexaene hexachloride tetrahydrate

open access: yesActa Crystallographica Section E, 2008
The title compound, C28H52N66+·6Cl−·4H2O, is a dinucleating 28-membered centrosymmetric hexaazamacrocyclic complex. The macrocyclic ligand adopts a chair-like conformation, with the crystallographic inversion center located in the ...
Hai-Yan Liu, Guo-Hua Wei, Jian-Fang Ma
doaj   +1 more source

Diametric calix[6]arene-based phosphine gold(I) cavitands

open access: yesBeilstein Journal of Organic Chemistry, 2022
We report the synthesis and characterization, in low polarity solvents, of a novel class of diametric phosphine gold(I) cavitands characterized by a 1,2,3-alternate geometry. Preliminary catalytic studies were performed on a model cycloisomerization of 1,
Gabriele Giovanardi   +3 more
doaj   +1 more source

“Texas-Sized” Molecular Boxes: From Chemistry to Applications

open access: yesMolecules, 2021
The design and synthesis of novel macrocyclic host molecules continues to attract attention because such species play important roles in supramolecular chemistry.
Xiaodong Chi   +5 more
doaj   +1 more source

Fluorenonophane chlorobenzene solvate: molecular and crystal structures

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2021
The title compound, 19H,79H-3,5,9,11-tetraoxa-1,7(2,7)-difluorena-4,10(1,3)-dibenzenacyclododecaphane-19,79-dione (fluorenonophane), exists as a solvate with chlorobenzene, C42H28O6·C6H5Cl.
Viktoriya V. Dyakonenko   +4 more
doaj   +1 more source

Recognition Site Modifiable Macrocycle: Synthesis, Functional Group Variation and Structural Inspection

open access: yesMolecules, 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

Complexes of resorcin[4]arene with secondary amines: synthesis, solvent influence on “in-out” structure, and theoretical calculations of non-covalent interactions

open access: yesBeilstein 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

open access: yes, 2022
The present Doctoral Thesis is included within the area of Supramolecular Chemistry and, more specifically, in the field of Bioinspired Chemistry. The main objective is the design and development of new pseudopeptidic systems bearing cavities in their structure, since these cyclic compounds are extremely interesting due to their physicochemical ...
openaire   +6 more sources

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