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Aggregation-induced emission and aggregation-promoted photochromism of bis(diphenylmethylene)dihydroacenes

Reported herein is a new class of pure polycyclic hydrocarbon molecules, designed through a novel aggregation-induced emission (AIE) strategy, with unexpected photochromic properties. The restriction of intramolecular motion was found as a comprehensive mechanism for the AIE effect. The photochromis...

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Detalles Bibliográficos
Autores principales: He, Zikai, Shan, Liang, Mei, Ju, Wang, Hong, Lam, Jacky W. Y., Sung, Herman H. Y., Williams, Ian D., Gu, Xiao, Miao, Qian, Tang, Ben Zhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5500900/
https://www.ncbi.nlm.nih.gov/pubmed/28717460
http://dx.doi.org/10.1039/c5sc00900f
Descripción
Sumario:Reported herein is a new class of pure polycyclic hydrocarbon molecules, designed through a novel aggregation-induced emission (AIE) strategy, with unexpected photochromic properties. The restriction of intramolecular motion was found as a comprehensive mechanism for the AIE effect. The photochromism mechanism study revealed that the photocyclization reaction of cis-stilbene, the molecular conformation in the single crystal and the tetracene backbone should contribute to the unique photo behavior. In particular, the fast responsive, photo-reversible and thermo-irreversible photochromic effect facilitated in the solid state opens a new field of aggregation-promoted photochromism.