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Better big or strained? Deformations of shape persistent arylene butadiynylene macrocycles
Autorzy
Rok wydania
2023
Czasopismo
Numer woluminu
47
Strony
6086-6094
DOI
10.1039/d3nj00155e
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Shape-persistent macrocycles have been of interest for many years to researchers due to their potential in synthesis and materials chemistry. They are regarded as reasonably rigid and in many cases they are able to spontaneously aggregate forming supramolecular assemblies. The dependence of a steric hindrance located on oxygen atoms in 2,6-bis-acetylenephenolates on the structure of macrocycles obtained from these precursors by Eglinton homocoupling has been investigated. A small library of crystal structures of arylene butadiynylene species has been obtained and analyzed in detail. Our results showed that regardless of the steric hindrance usually a wide range of macrocycles is formed (starting from tetramers) even though the smaller derivatives are significantly deviated from planarity, which might result from avoiding too much strain in these macrocyclic, cross-conjugated molecules.
Adres publiczny
http://dx.doi.org/10.1039/d3nj00155e
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