Self-assembling and electrochromic films of bipyridinium building blocks

Salvatore Sortino, Sabrina Conoci, Ibrahim Yildiz, Massimiliano Tomasulo, Francisco Raymo

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The self-assembly of bipyridinium bisthiol on the surface of optically-transparent platinum electrodes, and the electrochemical properties of the resulting film, are studied. The exposure of an optically-transparent platinum electrode to a solution of the chloride salt of bipyridinium bisthiol in chloroform-methanol for 1 h results the adsorption of the bisthiol on the solid substrate. The cyclic voltammogram recorded after rinsing the electrode with chloroform, methanol and water shows the characteristic waves for the reversible reduction of the bipyridinium bications to their radical cations. The studies demonstrate that bipyridinium bisthiols adsorb on surface of the optically-transparent platinum electrodes. The surface coverage of the resulting films can be regulated by controlling the exposure time of the solid substrate to the bisthiol solution. The absorption properties of these interfacial assemblies can be modulated by switching the redox state of the bipyridinium units.

Original languageEnglish
Pages (from-to)3171-3173
Number of pages3
JournalJournal of Materials Chemistry
Volume16
Issue number31
DOIs
StatePublished - Aug 11 2006

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assembling
Platinum
Electrodes
platinum
electrodes
Chloroform
Chlorine compounds
chloroform
Methanol
methyl alcohol
Substrates
Electrochemical properties
Self assembly
assemblies
Cations
self assembly
Chlorides
Salts
Positive ions
chlorides

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Materials Science(all)

Cite this

Self-assembling and electrochromic films of bipyridinium building blocks. / Sortino, Salvatore; Conoci, Sabrina; Yildiz, Ibrahim; Tomasulo, Massimiliano; Raymo, Francisco.

In: Journal of Materials Chemistry, Vol. 16, No. 31, 11.08.2006, p. 3171-3173.

Research output: Contribution to journalArticle

Sortino, Salvatore ; Conoci, Sabrina ; Yildiz, Ibrahim ; Tomasulo, Massimiliano ; Raymo, Francisco. / Self-assembling and electrochromic films of bipyridinium building blocks. In: Journal of Materials Chemistry. 2006 ; Vol. 16, No. 31. pp. 3171-3173.
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