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      The crystal structures of 1-(4-bromo-2,3,5,6-tetrafluorophenyl)-3-benzyl-methylimidazolium bromides

      Althagbi, Hanan Ibrahim; Evans, Danielle N.; Saunders, Graham C.
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      88. Bromo bromides.pdf
      Accepted version, 1.175Mb
      DOI
       10.1016/j.molstruc.2018.06.073
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      Althagbi, H. I., Evans, D. N., & Saunders, G. C. (2018). The crystal structures of 1-(4-bromo-2,3,5,6-tetrafluorophenyl)-3-benzyl-methylimidazolium bromides. Journal of Molecular Structure, 1171, 755–761. https://doi.org/10.1016/j.molstruc.2018.06.073
      Permanent Research Commons link: https://hdl.handle.net/10289/12060
      Abstract
      The crystal structures of 1-(4-bromo-2,3,5,6-tetrafluorophenyl)-2-methyl-3-benzylimidazolium bromide (8) and 1-(4-bromo-2,3,5,6-tetrafluorophenyl)-3-benzyl-4-methylimidazolium bromide (9) have been determined by single crystal X-ray diffraction. Both crystal structures possess C(2)─H⋯Br− hydrogen bonding and C─Br⋯Br− halogen bonding. That of 8 also contains π–π stacking between bromotetrafluorophenyl and phenyl rings, and that of 9 also contains C(1)─H⋯Br− hydrogen bonding and anion–π interactions. The crystal structure of 9 is similar to that of the non-methylated salt, 1-(4-bromo-2,3,5,6-tetrafluorophenyl)-3-benzylimidazolium bromide (4), with columns of alternating parallel bromotetrafluorophenyl rings and bromide.
      Date
      2018
      Type
      Journal Article
      Publisher
      Elsevier
      Rights
      This is an author’s accepted version of an article published in the journal: Journal of Molecular structure. © 2018 Elsevier.
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      • Science and Engineering Papers [3069]
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