Macrocycle Embrace: Encapsulation of Fluoroarenes by m‐Phenylene Ethynylene Host |
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| Authors: | Dr Ilya Popov Dr Teng‐Hao Chen Dr Sergey Belyakov Prof Olafs Daugulis Prof Steven E Wheeler Prof Ognjen ? Miljani? |
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| Institution: | 1. Department of Chemistry, University of Houston, 112 Fleming Building, Houston, TX 77204‐5003 (USA);2. Latvian Institute of Organic Synthesis, 21 Aizkraukles Street, Riga LV 1006 (Latvia);3. Department of Chemistry, Texas A&M University, College Station, TX 77842 (USA) |
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| Abstract: | We report structural characterization of a new member of m‐phenylene ethynylene ring family. This shape‐persistent macrocycle also co‐crystallizes with hexafluoro‐, 1,2,4,5‐tetrafluoro‐, 1,3,5‐trifluoro, and 1,4‐difluorobenzene. The four complexes are almost isostructural, and all show the fluoroarene included into the central cavity of the macrocycle. Characterized by multiple short C?H???F?C contacts, these inclusion complexes further dimerize in the solid state into a 2+2 assembly, in which the two macrocycles embrace each other by their large hydrophobic groups that are rotated by 60° relative to one another. |
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| Keywords: | fluoroarenes inclusion complexes macrocycles shape persistency X‐ray diffraction |
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