Calixarene information

IUPAC definition calixarenes: Originally macrocyclic compounds capable of assuming a basket (or 'calix') shaped conformation. They are formed from p-hydrocarbyl...

of twelve or more atoms. Classical examples include the crown ethers, calixarenes, porphyrins, and cyclodextrins. Macrocycles describe a large, mature...

is large enough to hold other molecular hosts such as a calixarene molecule. With a calixarene guest different chemical conformations (cone, 1,2-alternate...

reaction with other molecules. The first generation carcerands are based on calixarene hemicarcerands with 4 alkyl substituents on the upper rim and 4 reactive...

and host, the attraction being generally due to van der Waals forces. Calixarenes and related formaldehyde-arene condensates are one class of hosts that...

elaborate condensations ensue. With 4-substituted phenols one obtains calixarenes. Phenol results in polymers. Many amino acids react with formaldehyde...

orientation and geometry with respect to the membrane. Ion channels containing calixarenes of ring size 3 and 4 have both been reported. For calix[4]arene, two...

substituents occupying a benzylic position. It is observed in compounds such as calixarenes and acridines. Peri-substitution occurs in naphthalenes for substituents...

coined by Volker Boehmer in a 1994 review, to describe the chirality of calixarenes arising from their non-planar structure in 3-D space. This phenomenon...

bind substrates using receptors such as cyclodextrin, crown ethers, and calixarene. Artificial enzymes based on amino acids or peptides have expanded the...

3-trihydroxybenzene) and an aldehyde. Pyrogallolarenes are a type of calixarene, and a subset of resorcinarenes that are substituted with a hydroxyl at...

of DNA and nucleotides by triazole ligation supramolecular chemistry: calixarenes, rotaxanes, and catenanes dendrimer design carbohydrate clusters and...

host molecules." The term refers to many molecular hosts, including calixarenes and cyclodextrins and even some inorganic polymers such as zeolites....

be chemically modified to fine-tune their properties. Cyclodextrins, calixarenes, cucurbiturils and crown ethers are readily synthesized in large quantities...

methylene bridges. They are structurally similar to the cucurbiturils and calixarenes that play an important part in host–guest chemistry. The first pillararene...

Many synthetic ionophores are based on crown ethers, cryptands, and calixarenes. Pyrazole-pyridine and bis-pyrazole derivatives have also been synthesized...

motifs, such as crown ethers/ammonium ions, cucurbiturils/viologens, calixarene/viologens, cyclodextrins/adamantane derivatives, and pillar arene/imidazolium...

(1,3-dihydroxybenzene) and an aldehyde. Resorcinarenes are a type of calixarene. Other types of resorcinarenes include the related pyrogallolarenes and...

of problems in main group and transition metal chemistry, including: Calixarene complexes Retrodative bonding, especially related to boratranes Group...

Manuel; Rangelow, Ivo W (2013). "Nanolithography by scanning probes on calixarene molecular glass resist using mix-and-match lithography". Journal of...

unique saddle-shaped structure (compare to cones and partial cones in calixarenes). The helicenes are a conceptually related class of structures in which...

one atom. Cycloparaphenylene, cyclic all-para-linked phenyl groups. Calixarenes B. H. Smith, Bridged Aromatic Compounds, Academic Press, New York, 1964...

proposed by Cram includes many classes of molecules: cyclodextrins, calixarenes, pillararenes and cucurbiturils. However, modern usage in the field of...

and pestle and the product recrystallised from the resulting paste. Calixarenes are the general category of macrocycle oligomers formed by hydroxyalkylation...