Fluorine-induced emission enhancement of tolanes via formation of tight molecular aggregates. (16th April 2020)

• Record Type: Journal Article
• Authors: Morita, Masato; Yamada, Shigeyuki; Konno, Tsutomu
• Is Part Of: New journal of chemistry. Volume 44:Number 17(2020)
• Page Start: 6704
• Page End: 6708
• Publication Date: 2020-04-16
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj01268h
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Incorporation of fluorine atoms into the tolane backbone constructed tight crystal packing structures to suppress molecular motions, which provided dramatic enhancement of photoluminescence efficiency in crystalline state. Abstract : Fluorinated tolanes were found to show aggregation-induced emission characteristics and significantly enhanced photoluminescence efficiencies in molecular aggregates when compared with non-fluorinated tolanes. The fluorine atoms play important roles in the formation of tight crystal packing structures to suppress molecular motion in the crystalline state via electrostatic or hydrogen bonding interactions.