1H NMR spectroscopic and X-ray crystallographic investigations of a 1,3-bis(4-ethynyl-3-iodopyridinium)benzene scaffold with perrhenate reveal strong halogen bonding in solution, and bidentate association in the solid state. A nearly isostructural host molecule demonstrates significant C–H hydrogen bonding to perrhenate in the same phases.
C. J. Massena, A. M. S. Riel, G. F. Neuhaus, D. A. Decato and O. B. Berryman, Chem. Commun., 2015, 51, 1417 DOI: 10.1039/C4CC09242B
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