Issue 5, 2011

Cation-induced molecular motion of spring-like [2]catenanes

Abstract

The syntheses and cation recognition studies of two novel heteroditopic [2]catenanes that are capable of reversible rotary motion are described. Prepared by chloride anion templation, both catenanes possess a calixdiquinone unit able to bind Na+, K+, NH4+ and Ba2+ cations. Following characterization of the chloride salts of both catenanes by NMR, mass spectrometry and crystal structure determination, hexafluorophosphate salts were investigated for their behaviour upon addition of cations. Ba2+ complexation caused a partial intra-ring rotation of the two macrocycles in both species, which was reversed upon addition of the sequestering SO42 anion.

Graphical abstract: Cation-induced molecular motion of spring-like [2]catenanes

Supplementary files

Article information

Article type
Edge Article
Submitted
20 1月 2011
Accepted
23 2月 2011
First published
08 3月 2011

Chem. Sci., 2011,2, 922-927

Cation-induced molecular motion of spring-like [2]catenanes

A. V. Leontiev, C. J. Serpell, N. G. White and P. D. Beer, Chem. Sci., 2011, 2, 922 DOI: 10.1039/C1SC00034A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements