Molecular suppression of the pimerization of viologens (=4,4 `-bipyridinium derivatives) attached to nanocrystalline titanium dioxide thin-film electrodes

DC FieldValueLanguage
dc.contributor.authorFelderhoff, M
dc.contributor.authorHeinen, S
dc.contributor.authorMolisho, N
dc.contributor.authorWebersinn, S
dc.contributor.authorWalder, L
dc.date.accessioned2021-12-23T16:05:20Z-
dc.date.available2021-12-23T16:05:20Z-
dc.date.issued2000
dc.identifier.issn0018019X
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/6926-
dc.description.abstractTwelve 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.
dc.language.isoen
dc.publisherWILEY-V C H VERLAG GMBH
dc.relation.ispartofHELVETICA CHIMICA ACTA
dc.subjectCATION RADICALS
dc.subjectChemistry
dc.subjectChemistry, Multidisciplinary
dc.subjectELECTROCHROMISM
dc.subjectTIO2 FILMS
dc.subjectWINDOWS
dc.titleMolecular suppression of the pimerization of viologens (=4,4 `-bipyridinium derivatives) attached to nanocrystalline titanium dioxide thin-film electrodes
dc.typejournal article
dc.identifier.doi10.1002/(SICI)1522-2675(20000119)83:1<181::AID-HLCA181>3.0.CO;2-U
dc.identifier.isiISI:000085202900012
dc.description.volume83
dc.description.issue1
dc.description.startpage181
dc.description.endpage192
dc.contributor.orcid0000-0002-5497-034X
dc.publisher.placeMUHLENSTRASSE 33-34, D-13187 BERLIN, GERMANY
dcterms.isPartOf.abbreviationHelv. Chim. Acta
crisitem.author.deptInstitut für Chemie neuer Materialien-
crisitem.author.deptidinstitute11-
crisitem.author.orcid0000-0002-5497-034X-
crisitem.author.parentorgFB 05 - Biologie/Chemie-
crisitem.author.grandparentorgUniversität Osnabrück-
crisitem.author.netidWaLo966-
Show simple item record

Page view(s)

2
Last Week
0
Last month
1
checked on Apr 23, 2024

Google ScholarTM

Check

Altmetric