Spectroscopic Investigation of the Ultrafast Photoinduced Dynamics in pi-Conjugated Terpyridines
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Siebert, Ronald; Akimov, Denis; Schmitt, Michael; Winter, Andreas; Schubert, Ulrich S.; Dietzek, Benjamin; J\", ; urgen Popp,
- Abstract:
- Time-resolved spectroscopy is applied to investigate the ultrafast
relaxation dynamics of several p-conjugated mono-, bis-,
tris- and tetrakis(terpyridine) derivatives. This particular series
of structurally closely related systems was prepared applying
efficient synthetic strategies and resembles key building blocks
for a wide range of photoactive complexes, dendrimers and
metallo-polymers with resulting potential applications, for example,
in photovoltaics or as organic light-emitting diodes. Aiming for applications of supramolecular assemblies based on
these recently presented terpyridine ligands a detailed knowledge
of the light-induced processes of the ligands themselves
represents a prerequisite. By applying femtosecond time-resolved
absorption spectroscopy in concert with time-resolved
fluorescence and Raman measurements, we detail the photophysical
properties.
- Year:
- 2009
- Type of Publication:
- Article
- Journal:
- Chemical Physics and Physical Chemistry
- Volume:
- 10
- Pages:
- 910 - 919