English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Molecular Suppression of the Pimerization of Viologens (=4,4′-Bipyridinium Derivatives) Attached to Nanocrystalline Titanium Dioxide Thin-Film Electrodes

Felderhoff, M., Heinen, S., Molisho, N., Webersinn, S., & Walder, L. (2000). Molecular Suppression of the Pimerization of Viologens (=4,4′-Bipyridinium Derivatives) Attached to Nanocrystalline Titanium Dioxide Thin-Film Electrodes. Helvetica Chimica Acta, 83(1), 181-192. doi:10.1002/(SICI)1522-2675(20000119)83:1<181:AID-HLCA181>3.0.CO;2-U.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Felderhoff, Michael1, 2, Author              
Heinen, Susanne2, Author
Molisho, Ngongo2, Author
Webersinn, Simona2, Author
Walder, Lorenz2, Author
Affiliations:
1Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
2Institut für Chemie, Universität Osnabrück, Barbarastr. 7, D-49069 Osnabrück, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Twelve viologens, i.e., 4,4′-bipyridinium derivatives 1 – 12, were examined for their use as electrochromic material when attached to nanocrystalline titanium dioxide thin-film electrodes. Eight of these (1 – 4, 7 – 8, 10, and 12) are new, and their synthesis is included. The modifier compounds consist of one to four bipyridinium subunits with linear or dendritic architecture, equipped with one to three TiO2-anchoring phosphonate groups. They are tailored for high electrochromic dynamics (large absorbance change upon reduction) and low extent of pimerization (=charge-transfer (CT) complexation of viologen cation radicals). A new graphical method is presented for the discrimination of simple dilution phenomena and more complex structural effects on the extent of pimerization in the surface-attached viologen layer.

Details

show
hide
Language(s): eng - English
 Dates: 2000-01-242000-01-19
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Helvetica Chimica Acta
  Abbreviation : Helv. Chim. Acta
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Zürich : Verlag Helvetica Chimica Acta AG
Pages: - Volume / Issue: 83 (1) Sequence Number: - Start / End Page: 181 - 192 Identifier: ISSN: 0018-019X
CoNE: https://pure.mpg.de/cone/journals/resource/954925403620