Redox behaviour of phthalocyanines bearing aliphatic and polyethylene oxide chains

The electrochemical behaviour of phthalocyanines octasubstituted by aliphatic and by polyethylene oxide chains has been studied. Monocation radicals were electrogenerated by oxidation, whereas the reduction produced monoanion radicals and dianions. The substituents have limited effects on the oxidat...

Full description

Saved in:
Bibliographic Details
Published in:Analytica chimica acta 1991-10, Vol.251 (1), p.39-46
Main Authors: Giraudeau, A., El Meray, M., Gross, M., Piechocki, C., Bernard, M.
Format: Article
Language:English
Subjects:
Chemistry
Cyclic voltammetry
Electrochemistry
Exact sciences and technology
General and physical chemistry
Phthalocyanines
Voltammetry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The electrochemical behaviour of phthalocyanines octasubstituted by aliphatic and by polyethylene oxide chains has been studied. Monocation radicals were electrogenerated by oxidation, whereas the reduction produced monoanion radicals and dianions. The substituents have limited effects on the oxidation/reduction potentials of the phthalocyanines. However, the eight C 12 aliphatic chains in C 12PcM significantly decrease the rate constant of the first reduction. Another result of the substitutions is enhancement of the surface-active properties of the phthalocyanines, thus triggering a strong adsorption of these molecules on the electrodes.
ISSN:0003-2670
1873-4324
DOI:10.1016/0003-2670(91)87113-L