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Updated: Nov 1, 2025

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
Protonation and Alkylation Induced Multidentate C-H•••Anion Binding to Perrhenate
Asia Marie S Riel1, Daniel A Decato1, Orion B Berryman1
1Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States.
Abstract:
A family of pyridyl functionalized arylacetylene C-H HB receptors were synthesized and binding interactions to perrhenate (ReO4 -) studied in the solid state. The protonation and alkylation state of the pyridine nitrogen dictate the location and denticity of the interactions. X-ray structures of neutral 1 and singly charged 2a reveal the formation of favorable self-complimentary dimers, owning to the presence of nitrogen HB acceptor sites. Dismissal of these dimers upon elimination of nitrogen HB acceptors on the receptor result in an array of multidentate C-H HB receptor-guest contacts.
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