Anion Modulated Expression of Chirality in Hydrogen Bond Templated Mechanically Chiral [2]Rotaxanes

Spicer, Rebecca L. and Shearman, Curtis C. and Evans, Nicholas H. (2023) Anion Modulated Expression of Chirality in Hydrogen Bond Templated Mechanically Chiral [2]Rotaxanes. Chemistry - A European Journal, 29 (21): e202203502. ISSN 0947-6539

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Abstract

The syntheses of two novel mechanically chiral rotaxanes containing urea and squaramide motifs (in yields of 33 % and 22 %, respectively) are presented. 1H NMR spectroscopic titrations reveal shuttling of the macrocycle – detectable by modulation of the expression of mechanical chirality in the NMR spectrum – is possible through the addition of achiral chloride anions, a process which is reversed by the addition of sodium cations.

Item Type:
Journal Article
Journal or Publication Title:
Chemistry - A European Journal
Uncontrolled Keywords:
Research Output Funding/yes_externally_funded
Subjects:
?? yes - externally fundedyeschemistry(all) ??
ID Code:
183921
Deposited By:
Deposited On:
12 Jan 2023 16:10
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Jan 2024 12:05