Two [2]pseudorotaxane-like complexes and their corresponding [2]rotaxanes stabilized via interactions on opposite ends of the same macrocycle
Resource
Tetrahedron Letters 50 (3): 267-270
Journal
Tetrahedron Letters
Journal Volume
50
Journal Issue
3
Pages
267-270
Date Issued
2009
Author(s)
Abstract
A multiple-use macrocycle recognizes dibenzylammonium ions and 2,6-lutidine derivatives, each in a [2]pseudorotaxane-like manner, through interactions with its diethylene glycol (hydrogen bonding) and 2,6-pyridinedicarboxamide (Pd2+ chelation) spacers, respectively. We characterized these complexes in the solid state (X-ray crystallography) and in solution (1H NMR spectroscopy). The synthesis of two corresponding [2]rotaxanes confirmed that these recognition systems possess [2]pseudorotaxane geometries in solution. © 2008 Elsevier Ltd. All rights reserved.
Type
journal article
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