Results 1 to 10 of about 5,563 (208)

The DOTA macrocyclic cavity in metallic radiopharmaceuticals: Mythology or reality? [PDF]

open access: yesEJNMMI Radiopharmacy and Chemistry, 2023
Background The hypothetical concept of ‘macrocyclic cavity’ is largely employed as useful model to interpret the affinity of metal ions for the macrocyclic chelating ligand 2,2′,2′′,2′′′-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetic acid ...
Adriano Duatti
doaj   +4 more sources

Non-macrocyclic molecular design enables cavity-adaptive cocrystals with high elasticity and low-threshold lasing [PDF]

open access: yesNature Communications
The construction of cavity-adaptive cocrystals (CACs) based on linear non-macrocyclic π-conjugated hosts remains challenging due to their inherently weak and less predictable binding capabilities compared to conventional macrocyclic hosts.
Zuofang Feng   +9 more
doaj   +2 more sources

Synthesis and host-guest chemistry of a thiophene-extended pillar[6]arene: toward applications in nitroaromatics removal and cell imaging [PDF]

open access: yesFrontiers in Chemistry
Over the past decade, significant progress has been made in the study of pillar [n]arenes; however, the development of their analogs remains underexplored, offering new opportunities for the discovery of functional materials.
Tingting Chen, Fengqin Wang
doaj   +2 more sources

Macrocycle-assembled membranes for high-salinity organic wastewater treatment [PDF]

open access: yesNature Communications
Membrane processes offer a promising pathway for selectively separating organics and salts to enable water reuse and resource recovery. While polymeric membranes incorporating macrocyclic molecules that feature amphiphilic nature and tunable cavities are
Yizhuo Li   +9 more
doaj   +2 more sources

Recent Advances in the Synthesis and Applications of Nitrogen-Containing Macrocyclic Arenes [PDF]

open access: yesMolecules
Macrocyclic arenes are rich-electron macrocycles bridged by methylene or methyl groups from aromatic rings substituted by hydroxyl or alkoxy groups. It has attracted great interest in host–guest chemistry and supramolecular self-assembly due to its clear
Jianhang Hu, Wanhua Wu, Cheng Yang
doaj   +2 more sources

Bis-urea macrocycles with a deep cavity [PDF]

open access: yesChemical Communications, 2015
Two bis-urea macrocycles with a deep cavity demonstrate an enzyme-like binding, and the influence of dipole alignments on molecular recognition.
Huang, Guabao   +7 more
openaire   +3 more sources

Crystal structure and supramolecular features of a bis-urea-functionalized pillar[5]arene

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
The crystal structure of a bis-urea derivative based on A1/A2-functionalized pillar[5]arene (DUP) that encapsulates dimethyl formamide (DMF) inside the macrocyclic cavity is reported. The crystal structure of DUP·DMF, C63H70N4O12·C3H7NO, reveals that out
Mickey Vinodh   +2 more
doaj   +1 more source

Biphenarenes, Versatile Synthetic Macrocycles for Supramolecular Chemistry

open access: yesMolecules, 2023
The development of supramolecular chemistry has always been accompanied by the innovation of macrocyclic hosts. The synthesis of novel macrocycles with unique structures and functions will bring new development opportunities for supramolecular chemistry.
Wenjie Zhang, Wenzhi Yang, Jiong Zhou
doaj   +1 more source

Proton in the ring: spectroscopy and dynamics of proton bonding in macrocycle cavities

open access: yesPhysical Chemistry Chemical Physics, 2021
Protons confined in the ring cavities of crown ethers form dynamic proton bonds that migrate to  varying pairs of coordinating atoms, at a rate depending on electronegativity and on the flexibility of the macrocycle backbone.
Francisco Gámez   +4 more
openaire   +4 more sources

Synthesis and complexes of a constrained-cavity Schiff-base dipyrrin macrocycle

open access: yesDalton Transactions, 2021
A one-pot cyclisation/oxidation process results in a new constrained-cavity Schiff-base dipyrrin macrocycle and allows access to Li, Fe, and Zn complexes of this unique chromophore.
Karlotta van Rees, Jason B. Love
openaire   +3 more sources

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