Extended viologen as a source of electric oscillations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F11%3A00358314" target="_blank" >RIV/61388963:_____/11:00358314 - isvavai.cz</a>

Alternative codes found

RIV/61388955:_____/11:00358314

Result on the web

<a href="http://dx.doi.org/10.1039/c0cp01810d" target="_blank" >http://dx.doi.org/10.1039/c0cp01810d</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c0cp01810d" target="_blank" >10.1039/c0cp01810d</a>

Result language

angličtina

Original language name

Extended viologen as a source of electric oscillations

Original language description

A long organic molecule 1 with five bipyridinium functions separated by benzene rings (extended viologen) undergoes a reversible multi-step electron transfer. Here we show that this decacation accepts electrons at the heterogeneous interface with the occurrence of the periodically changing electric reduction currents. According to the applied bias voltage the observed current-time dependence changes from chaotic through periodic and irregular to sinusoidal and finally to monotonous. A careful choice ofthe controlling parameters yields the sustained periodic sinusoidal currents lasting for a prolonged time. Oscillations stem from a mutual interplay of the heterogeneous supply of electrons and the homogeneous redox reactions (disproportionation) betweenthe transient redox forms. In difference to many other electrochemical oscillating systems the described oscillations do not require any additional external impedance.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

4365-4371

UT code for WoS article

000287584700022

EID of the result in the Scopus database

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