Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1855
pubmed:dateCreated
2007-4-24
pubmed:abstractText
Density functional theory calculations together with highly resolved gas-phase ultraviolet photoelectron spectroscopy have been applied to oligothiophene chains with up to eight thiophene rings. One of the important parameters governing the charge transport properties in the condensed phase is the amount of energy relaxation upon ionization. Here, we investigate the impact on this parameter of the backbone flexibility present in oligothiophenes as a result of inter-ring torsional motions. With respect to oligoacenes that are characterized by a coplanar and rigid backbone, the torsional flexibility in oligothiophenes adds to the relaxation energy and leads to the broadening of the first ionization peak, making its analysis more complex.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jun
pubmed:issn
1364-503X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
365
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1435-52
pubmed:dateRevised
2009-4-16
pubmed:year
2007
pubmed:articleTitle
Hole-vibronic coupling in oligothiophenes: impact of backbone torsional flexibility on relaxation energies.
pubmed:affiliation
School of Chemistry and Biochemistry, Centre for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
pubmed:publicationType
Journal Article