Publication Type Journal Article
Title Alkylammonium Guest Induced-Fit Recognition by a Flexible Dihomooxacalix[4]arene Derivative
Authors Carmen Talotta Carmine Gaeta Margherita De Rosa José do Rosário Ascenso Paula M. Marcos Placido Neri
Groups BioMol
Journal EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Year 2016
Month January
Volume
Number 1
Pages 158-167
Abstract The conformationally mobile tetramethoxy-dihomooxacalix[4]arene 1c is able to interact with linear and branched alkylammonium guests through an induced-fit process mainly driven by H-bonds and cation- interactions. Although free 1c adopts a 1,4-alternate conformation in solution, in the presence of linear nBuNH(3)(+) and branched sBuNH(3)(+) and iPrNH(3)(+) guests, it preferentially forms endo-complexes in a cone conformation through adaptive structural change in response to the presence of the ammonium guests. In accordance with previous results, the DFT-optimized structures of the complexes indicate that they are mainly stabilized by H-bonding interactions between the guest ammonium group and the host CH2OCH2 ethereal bridge.
DOI http://dx.doi.org/10.1002/ejoc.201501319
ISBN
Publisher WILEY-V C H VERLAG GMBH
Book Title
ISSN 1434-193X
EISSN 1099-0690
Conference Name
Bibtex ID ISI:000368022100025
Observations
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