Host-guest complexes of C-propyl-2-bromoresorcinarene with aromatic <i>N</i>-oxides<sup>*</sup>

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<p>The host-guest complexes of C-propyl-2-bromoresorcinarene with pyridine <i>N</i>-oxide, 3-methylpyridine <i>N</i>-oxide, quinoline <i>N</i>-oxide and isoquinoline <i>N</i>-oxide are studied using single crystal X-ray crystallography and <sup>1</sup>H NMR spectroscopy. The C-propyl-2-bromoresorcinarene forms <i>endo</i>-complexes with the aromatic <i>N</i>-oxides in the solid-state when crystallised from either methanol or acetone. In solution, the <i>endo</i>-complexes were observed only in methanol-d<sub>4</sub>. In DMSO the solvent itself is a good guest, and crystallisation provides only solvate <i>endo</i>-complexes. The C-propyl-2-bromoresorcinarene shows remarkable flexibility when crystallised from either methanol or acetone, and packs into one-dimensional self-included chains. Of special note, crystallising C-propyl-2-bromoresorcinarene with 3-methylpyridine <i>N</i>-oxide from acetone results in a 2:2 dimeric capsular assembly organised through both C−H···π<sub>host</sub> and N−O···(H−O)<sub>host</sub> interactions.</p>
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Publiceringsår

2017

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Department of Applied Physics

John F. Trant - Medarbetare

Kari Rissanen - Medarbetare

Lotta Turunen - Medarbetare

Pia Jurček - Medarbetare

Rakesh Puttreddy - Medarbetare

Ngong Beyeh - Upphovsperson

Robin Ras Orcid -palvelun logo - Upphovsperson

University of Jyväskylä - Medarbetare

University of Windsor - Medarbetare

figshare - Utgivare

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Creative Commons Attribution 4.0 International (CC BY 4.0)

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