Linked Life Data

14982466

Source:http://linkedlifedata.com/resource/pubmed/id/14982466

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2004-2-25
pubmed:abstractText
We report excellent correlations between the first negative threshold potentials (V(TH)s) for electric conduction, electrochemical potentials, and computed lowest unoccupied molecular orbital energies in a series of phenylene-ethynylene oligomers bearing a sulfur-based anchoring unit and different electroactive substituents on the central benzene ring. The theoretical and electrochemical results strongly suggest that the peaks observed in the i-V curves have a true molecular origin and are associated with distinct unoccupied molecular levels of the compounds that are strongly localized on the central ring (except for compound I). This localization might account for the existence of a long-lived radical-anion state that permits lateral electron hopping and leads to charge trapping and storage.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Mar
pubmed:issn
0002-7863
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
126
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2568-73
pubmed:year
2004
pubmed:articleTitle
Electrons are transported through phenylene-ethynylene oligomer monolayers via localized molecular orbitals.
pubmed:affiliation
Department of Chemistry and Biochemistry and Center for Nano- and Molecular Science, The University of Texas at Austin, Austin, Texas 78712, uSA.
pubmed:publicationType
Journal Article