“…Photoactive azo residue was also used for joining two molecules of calix[4]arenes to form dimeric structures (Fig. 72 ) [ 218 ]. Azo linked calix[4]arene 171 exists in a locked trans form [ 219 ].…”
Azobenzene derivatives due to their photo- and electroactive properties are an important group of compounds finding applications in diverse fields. Due to the possibility of controlling the trans–cis isomerization, azo-bearing structures are ideal building blocks for development of e.g. nanomaterials, smart polymers, molecular containers, photoswitches, and sensors. Important role play also macrocyclic compounds well known for their interesting binding properties. In this article selected macrocyclic compounds bearing azo group(s) are comprehensively described. Here, the relationship between compounds’ structure and their properties (as e.g. ability to guest complexation, supramolecular structure formation, switching and motion) is reviewed.
“…Photoactive azo residue was also used for joining two molecules of calix[4]arenes to form dimeric structures (Fig. 72 ) [ 218 ]. Azo linked calix[4]arene 171 exists in a locked trans form [ 219 ].…”
Azobenzene derivatives due to their photo- and electroactive properties are an important group of compounds finding applications in diverse fields. Due to the possibility of controlling the trans–cis isomerization, azo-bearing structures are ideal building blocks for development of e.g. nanomaterials, smart polymers, molecular containers, photoswitches, and sensors. Important role play also macrocyclic compounds well known for their interesting binding properties. In this article selected macrocyclic compounds bearing azo group(s) are comprehensively described. Here, the relationship between compounds’ structure and their properties (as e.g. ability to guest complexation, supramolecular structure formation, switching and motion) is reviewed.
“…Since the investigation of calixarenes dealing with their syntheses, reactivity and a large variety of applications is very intense, [55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70] only selected examples of considered compounds are described in this review.…”
In this paper the syntheses and reactivity of calixarenes functionalized at their meso positions are reviewed. First the calixarenes substituted at one, two and all meso positions are described; they are followed by presentation of ketocalixarenes.
“…It contains polar NH group required for anion binding and is able to reverse E/Z-isomerization under light influence. [28][29][30] Introduction of ester fragment in a macrocycle structure is necessary for realization of the template effect of alkali metal cations at the synthesis of thiacalix [4]arene stereoisomers. Besides, it is known that introduction of an ethoxycarbonyl fragment in the lower rim of a macrocycle significantly influences on the complex formation with anions.…”
Section: Synthesis Of Thiacalix[4]arenesmentioning
New p-tert-butyl thiacalix[4]arene derivatives containing simultaneously the 4-amidoazobenzene and ethoxycarbonyl fragments at the lower rim in cone and
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
