Cocrystallization of a tripyridyl donor with perfluorinated iodobenzene derivatives: Formation of different n⋯i halogen bonds determining network vs plain packing crystals

Maida Vartanian, André C.B. Lucassen, Linda J.W. Shimon, Milko E. Van Der Boom

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Two cocrystals (4, 5) have been obtained with 1,3,5-tris[4-pyridyl(ethenyl) ]benzene (1), sym-triiodo-trifluorobenzene (2), and diiodo-tetrafluorobenzene (3), respectively. Cocrystal 4 contains both compounds 1 and 2 in a molecular ratio of 1:2, whereas cocrystal 5 contains both compounds 1 and 3 in a molecular ratio of 1:0.5 and the solvent used for crystallization, namely, chloroform. Both cocrystals (4, 5) contain N⋯I halogen bonds with distances of ∼80% of the sum of the van der Waals radii. Compound 1 forms four halogen bonding interactions in cocrystal 4, resulting in an infinite halogen-bonded network with two types of N⋯I halogen bonds, whereas in cocrystal 5, compound 1 forms only one type of halogen bonding interaction with compound 3.

Original languageEnglish
Pages (from-to)786-790
Number of pages5
JournalCrystal Growth and Design
Issue number3
Publication statusPublished - Mar 1 2008


ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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