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

Autor:	Dr. Jan‐Henrik Weddeling, Paul Lukas Waltersmann, Beate Neumann, Dr. Hans‐Georg Stammler, Prof. Dr. Norbert W. Mitzel
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	1 3 5-triethynylbenzene crystal engineering halogenated arenes phenyl-perfluorophenyl interactions solid-state structures Chemistry QD1-999
Zdroj:	ChemistryOpen, Vol 10, Iss 10, Pp 1059-1066 (2021)
Druh dokumentu:	article
ISSN:	2191-1363 20210019
DOI:	10.1002/open.202100194
Popis:	Abstract 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.
Databáze:	Directory of Open Access Journals
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