Title

Shape persistence delivers lock-and-key chloride binding in triazolophanes

Document Type

Article

Publication Date

4-30-2012

Abstract

Triazolophanes have recently surfaced as a new class of shape-persistent macrocycles that bind anions. Bearing only triazole- and phenyl-derived CH hydrogen bond donors, these receptors have shown extraordinary Cl- binding strengths (>106 M−1, CH2Cl2). The attributes of the triazolophane that are responsible are presented herein alongside recent literature accounts that have utilized similar strategies in new and exciting supramolecular systems. This review describes how triazolophanes leverage the structural pre-organization characteristic of spherands to take advantage of non-traditional hydrogen bonds originating from extrinsic CH donors. © 2012 Royal Society of Chemistry.

Publication Source (Journal or Book title)

Chemical Communications

First Page

5065

Last Page

5075

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