Co‐Crystal Formation of Partially Fluorinated 1,3,5‐Tris(phenylethynyl)benzenes

Autor:	Weddeling, Jan‐Henrik, Waltersmann, Paul Lukas, Neumann, Beate, Stammler, Hans‐Georg, Mitzel, Norbert W.
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Chemistry Full Paper crystal engineering solid-state structures halogenated arenes phenyl-perfluorophenyl interactions Full Papers QD1-999 1 3 5-triethynylbenzene
Zdroj:	ChemistryOpen ChemistryOpen, Vol 10, Iss 10, Pp 1059-1066 (2021)
ISSN:	2191-1363
Popis:	Several rigid 1,3,5‐tris(phenylethynyl)benzenes with different fluorination patterns were synthesized through selective Sonogashira‐Hagihara coupling reactions to analyze the packing behavior in solid‐state structures. The aggregation is dominated by various intermolecular interactions between aryl substituents, triple bonds, C−H bonds and H⋅⋅⋅F contacts. Co‐crystallization experiments for the analysis of preferred aryl‐aryl‐interactions led to 1 : 1 complexes. Intermolecular phenyl‐perfluorophenyl interactions with short centroid‐centroid distances are dominating these co‐crystal structures. They lead to melting point increases of up to 49 °C for the co‐crystals compared to the pure substances. π‐Stacking in co‐crystals of fluorinated and non‐fluorinated aryl units in 1,3,5‐tris(phenylethynyl)benzenes have different preferences and give stacks of different stability.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::d35aa71cbfab3c8548f460e2daed2c8d http://europepmc.org/articles/PMC8527987 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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