A1 Journal article (refereed)
Weak Interactions between Resorcinarenes and Diquaternary Alkyl Ammonium Cations (2005)

Mansikkamäki, H., Schalley, C. A., Nissinen, M., & Rissanen, K. (2005). Weak Interactions between Resorcinarenes and Diquaternary Alkyl Ammonium Cations. New Journal of Chemistry, 29(1), 116-127. https://doi.org/10.1039/B415401K

JYU authors or editors

Publication details

All authors or editors: Mansikkamäki, Heidi; Schalley, Christoph A.; Nissinen, Maija; Rissanen, Kari

Journal or series: New Journal of Chemistry

ISSN: 1144-0546

eISSN: 1369-9261

Publication year: 2005

Volume: 29

Issue number: 1

Pages range: 116-127

Publisher: Royal Society of Chemistry

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1039/B415401K

Publication open access: Not open

Publication channel open access:

Abstract

The interactions of resorcin[4]arenes 1 with alkyl ammonium cations bearing a 1,4-diazabicyclo[2.2.2]octane (DABCO) scaffold (32+, 42+ and 52+) were analyzed in the solid state by X-ray crystallography, in solution by 1H NMR spectroscopy, and in the gas phase by ESI-TOF mass spectrometry. The results are complemented with AM1 calculations and compared to previous reports on complexation studies of resorcinarenes with quaternary alkyl ammonium cations. The NMR titration results indicate that there are hardly any differences in the binding of the quaternary tetramethyl ammonium cation 2+ and the diquaternary N,N’-dimethyl DABCO dication 42+. The large N,N’-dibenzyl DABCO dication 52+ has two potential sites for inclusion, that is, the aryl groups and the central cationic part, and the complexation and interactions of both sites with 1 were verified in the NMR studies as well as in the solid state structures.

Free keywords: resorcinarene; complex; weak interactions; supramolecular

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Ministry reporting: Yes

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