Coumarin-Containing Pillar[5]arenes as Multifunctional Liquid Crystal Macrocycles

Concellón, A. ; Romero, P. (Universidad de Zaragoza) ; Marcos, M. ; Barberá, J. (Universidad de Zaragoza) ; Sánchez-Somolinos, C. (Universidad de Zaragoza) ; Mizobata, M. ; Ogoshi, T. ; Serrano, J.L. (Universidad de Zaragoza) ; Del Barrio, J. (Universidad de Zaragoza)

Resumen: Liquid crystal macrocycles (LCMs) combine the unique properties of liquid crystals with those associated with macrocyclic compounds - shape persistence and the capability of hosting small molecules. Herein, we investigate the grafting of coumarin-containing promesogenic moieties to pillar[5]arene as a strategy to obtain multifunctional LCMs. Pillar[5]arenes containing 10 and 30 coumarin units are glassy materials with nematic mesomorphism. Moreover, the coumarin moieties afford the pillar[5]arene derivatives with enhanced film-forming and photoresponsive properties. Photodimerization of the coumarin moieties results in cross-linked polymer networks, which can be used as alignment layers. Therefore, liquid-crystal coumarin-containing pillar[5]arenes represent a significant addition to the family of LCMs and may become useful for the development of engineered, hierarchical structures and materials.

Idioma: Inglés

DOI: 10.1021/acs.joc.0c00852

Año: 2020

Publicado en: JOURNAL OF ORGANIC CHEMISTRY 85, 14 (2020), 8944-8951
ISSN: 0022-3263

Factor impacto JCR: 4.354 (2020)

Categ. JCR: CHEMISTRY, ORGANIC rank: 12 / 57 = 0.211 (2020) - Q1 - T1

Factor impacto SCIMAGO: 1.2 - Organic Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/LMP150-18
Financiación: info:eu-repo/grantAgreement/ES/DGA-FSE/E47-17R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/BIO2017-84246-C2-1-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2017-84087-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FSE-FEDER/RYC-2015-18471
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PGC2018-097583-B-I00

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)