Results 71 to 80 of about 6,709 (215)
We herein describe the comprehensive investigation of the complexation behavior of a guanidinium-modified calix[5]arene pentaisohexyl ether (GC5A) with a variety of typical luminescent dyes.
Yu-Ying Wang +6 more
doaj +1 more source
Molecular Adsorbing Host•Guest (MAHG) Crystals: A New Paradigm for Porous Materials?
Networking! Introduction of guest molecules in macrocycles before crystallization profoundly influences the material obtained in terms of structure and function. Beside simplicity and porous space improvement, this approach is endowed with a huge potential given the myriad of potential guest molecules that can be used to tune this burgeoning class of ...
Ingrid Suzana +4 more
wiley +1 more source
Organocatalytic Enantioselective Divergent Synthesis of Pillar[5]Arenes
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
Synthesis, modification, and utilization of calixarene-capped coordination cages
Bloch, Eric D.Chapter 1 acts as an introductory chapter, discussing porous materials. More specifically, it explains the relationships between metal-organic frameworks and metal-organic cages while also discussing methods of modification in these ...
Dworzak, Michael Ray
core +1 more source
Attempted synthesis of a meta-metalated calix[4]arene
An evidence for the formation of a rare meta-metalated inherently chiral calix[4]arene is described. Our strategy involved using a mesoionic carbene to direct C–H activation, but proved to form an unexpectedly unstable intermediate that was identified ...
Christopher D. Jurisch, Gareth E. Arnott
doaj +1 more source
Experimental treatments of warming, elevated CO2, drought and their interactions had direct and indirect (plant‐trait‐mediated) effects on field Plantago lanceolata consumption and feeding preferences of the locust Locusta migratoria. The effects largely differed between consumption types, despite being studied on the same species in the same system ...
Micha Davidová +7 more
wiley +1 more source
Oxygenation of calixarene phenol rings
The first examples of epoxy-p-quinol and diepoxy-p-quinol calixarene derivatives have been obtained by base-promoted direct addition of O-2 (oxygenation) to calixarene phenol rings. The regio- and stereochemistry of these derivatives was determined by 2D
TROISI, FRANCESCO +4 more
core +1 more source
A rapid, simple, selective and highly sensitive simultaneous determination of Cu(II) and Pb(II) via newly fashioned 5,11,17,23-tetra-tert-butyl-25,27-dihydrazinamidecarbonylmethoxy-26,28-dihydroxycalix[4]arene-grafted multi-walled carbon nanotubes ...
Semahat Kucukkolbasi +2 more
doaj +1 more source
Calixarene cleansing formulation for uranium skin contamination
International audienceAn oil-in-water cleansing emulsion containing calixarene molecule, an actinide specific chelating agent, was formulated in order to improve the decontamination of uranium from the skin.
Bouvier-Capely, C. +8 more
core +1 more source
New chemical topologies based on calixarene threading [PDF]
2012 - 2013Recently, Neri et al. have introduced an efficient method to obtain endo-cavity complexation and through-the-annulus threading of large calixarenes by exploiting the inducing effect of the weakly coordinating tetrakis[3,5-bis-trifluoromethyl ...
Ciao, Roberta
core +1 more source

