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Fast redox-triggered shuttling motions in a copper rotaxane based on a phenanthroline-terpyridine conjugate

Coronado, E, Gavina, P, Ponce, J and Tatay, S (2014) Fast redox-triggered shuttling motions in a copper rotaxane based on a phenanthroline-terpyridine conjugate Org. Biomol. Chem., 12. 7572-7580 - 7572-7580.

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Abstract

Fast shuttling motions in solution have been observed by cyclic voltammetry in a CuI/II-based [2] rotaxane. In the reported system, the different coordination preferences of both copper oxidation states are exploited to promote the electrochemically-triggered gliding of the ring from a tetra to a pentacoordinated site and vice versa. The thread of this rotaxane consists of a tridentate 2,2[prime or minute]:6[prime or minute],2[prime or minute][prime or minute]-terpyridine chelating unit directly bonded through its 5-position to the 3-position of the bidentate 1,10-phenanthroline unit. This distribution reduces to a minimum the distance between the two coordination sites and lessens the congestion around the tetrahedral environment. These two factors have been demonstrated to highly increase the kinetics of the switching process. In addition, the electrochemical experiments carried out in different solvent mixtures evidenced the influence of the solvent on the shuttling mechanism.

Item Type: Article
Authors :
NameEmailORCID
Coronado, EUNSPECIFIEDUNSPECIFIED
Gavina, PUNSPECIFIEDUNSPECIFIED
Ponce, Jj.ponce@surrey.ac.ukUNSPECIFIED
Tatay, SUNSPECIFIEDUNSPECIFIED
Date : 2014
Identification Number : https://doi.org/10.1039/C4OB01206B
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:33
Last Modified : 17 May 2017 15:11
URI: http://epubs.surrey.ac.uk/id/eprint/839656

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