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Conjugation length dependent ground and excited state electronic behavior in oligothienyl Ru complexes

TitleConjugation length dependent ground and excited state electronic behavior in oligothienyl Ru complexes
Publication TypeJournal Article
Year of Publication2006
AuthorsMoorlag, C, Sarkar, B, Sanrame, CN, Baeuerle, P, Kaim, W, Wolf, MO
JournalINORGANIC CHEMISTRY
Volume45
Pagination7044-7046
Date PublishedSEP 4
ISSN0020-1669
Abstract

Photoexcitation of a bis(bipyridyl) Ru(II) complex bearing a phosphinopentathiophene ligand results in formation of a transient species with a lifetime of 2.2 As. The transient is attributed to the product of an intramolecular charge transfer from the pentathiophene ligand. EPR and UV/vis spectroelectrochemistry show that the HOMO is pentathienyl-based, while corresponding complexes with shorter conjugation length ligands have a metal-based HOMO and do not exhibit long-lived transients.

DOI10.1021/ic060912n