Protonation and Alkylation Induced Multidentate C-H•••Anion Binding to Perrhenate.

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⁺•ReO₄ ^- 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.

SUBMITTER: Riel AMS 

PROVIDER: S-EPMC8218719 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature