Pseudopolymorphism of aliphatic amine/4-tert-butylcalix[4]arene inclusion compounds: supramolecular stabilization as a route to polar clusters and layers

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DOIResolve DOI: http://doi.org/10.1002/chem.200600434
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TypeArticle
Journal titleChemistry: A European Journal
Volume12
Issue32
Pages82408252; # of pages: 13
Abstract4-tert-Butylcalix[4]arene (4tBC4A) is a versatile host capable of forming a variety of 1:1 and 2:1 inclusion compounds typically stabilized through van der Waals interactions. Preliminary studies in our group have demonstrated that inclusion of n-butylamine in 4tBC4A results in a series of pseudopolymorphic inclusion compounds, including a new 3:1 inclusion motif. Using a combination of SCXRD, TGA, solid state NMR, and PXRD, we now elaborate upon the relationship between these pseudopolymorphs. We also demonstrate that larger amines demonstrate a similar degree of pseudopolymorphism, allowing for the production of customized materials using self-assembly guided by competing weak forces. Finally, we comment on the structural implications of the relative dominance such forces in the formation of calixarene-based supramolecular frameworks.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12327514
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Record identifierae38e100-fc4b-4844-a482-4711795b0c92
Record created2009-09-10
Record modified2016-05-09
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