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Oburn, Shalisa M; Bowling, Nathan P; Bosch, Eric
Crystal growth & design, 03/2015, Letnik: 15, Številka: 3Journal Article
The X-ray structure of a series of iodo- and bromo-phenylethynylpyridines designed to form self-complementary dimers in the solid state are reported. The perfluoroiodo- and perfluorobromophenylethynyl derivatives, 3-(2-bromo-3,4,5,6-tetrafluorophenyl)ethynylpyridine, 3-(2,3,4,5-tetrafluoro-6-iodophenyl)ethynylpyridine, 2-(3-bromo-2,4,5,6-tetrafluorophenyl)ethynylpyridine, and 2-(2,4,6-trifluoro-3,5-diiodophenyl)ethynylpyridine, formed self-complementary halogen-bonded dimeric units in the solid state. In contrast, 3-(2-bromo-4,5-difluorophenyl)ethynylpyridine formed a C–H···N hydrogen-bonded dimer.
