Short Communication
Binding Mechanisms and Driving Forces for the Selective Complexation between Pillar[5]arenes and Neutral Nitrogen Heterocyclic Compounds
Article first published online: 1 MAR 2013
DOI: 10.1002/ejoc.201201647
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Han, K., Zhang, Y., Li, J., Yu, Y., Jia, X. and Li, C. (2013), Binding Mechanisms and Driving Forces for the Selective Complexation between Pillar[5]arenes and Neutral Nitrogen Heterocyclic Compounds. Eur. J. Org. Chem., 2013: 2057–2060. doi: 10.1002/ejoc.201201647
Publication History
- Issue published online: 3 APR 2013
- Article first published online: 1 MAR 2013
- Manuscript Received: 5 DEC 2012
Keywords:
- Supramolecular chemistry;
- Host–guest systems;
- Molecular recognition;
- Binding mechanisms;
- Macrocycles
Abstract
To clarify the binding mechanisms and driving forces for the unique ability of pillar[5]arenes to recognize neutral molecules, the complexation of a series of nitrogen heterocycle substituted 1,4-butylene guests with pillar[5]arenes was studied. Guests molecules that have similar structures exhibit remarkably different association constants, and multiple weak C–H···N interactions between the alkyl groups of the pillar[5]arenes and the outer nitrogen atoms of the heterocycles of the guests are the dominant driving forces for complexation.

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