Installation of a Ratchet Tooth and Pawl To Restrict Rotation in a Cyclodextrin Rotaxane | Zendy

Onagi Hideki | Zendy; Blake Christopher J. | Zendy; Easton Christopher J. | Zendy; Lincoln Stephen F. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Installation of a Ratchet Tooth and Pawl To Restrict Rotation in a Cyclodextrin Rotaxane

Author(s) -

Onagi Hideki,

Blake Christopher J.,

Easton Christopher J.,

Lincoln Stephen F.

Publication year - 2003

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.200305280

Subject(s) - ratchet , rotaxane , cyclodextrin , chemistry , rotor (electric) , axle , rotation (mathematics) , stereochemistry , crystallography , computer science , physics , organic chemistry , artificial intelligence , supramolecular chemistry , crystal structure , quantum mechanics , chaotic , thermodynamics

Eight new [2]rotaxanes have been prepared, incorporating an α‐cyclodextrin as the rotor, a stilbene as the axle, and trinitrophenyl substituents as capping groups. Strategies have been devised to elaborate these by linking the rotor to the axle, to produce two new [1]rotaxanes. Rotational motion in a selection of these rotaxanes has been investigated through the application of two‐dimensional NMR spectroscopy by performing TOCSY, DQF‐COSY, ROESY and HMQC experiments. This has shown that a methoxyl group incorporated on the stilbene and a succinamide joining the stilbene and the cyclodextrin behave analogously to a ratchet tooth and pawl, respectively, to restrict rotation.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research