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
Preliminary JUFO rating: Not rated