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Photoinduced electron transfer in a ferrocene-distyryl BODIPY dyad and a ferrocene-distyryl BODIPY-C 60 triad

Title
Photoinduced electron transfer in a ferrocene-distyryl BODIPY dyad and a ferrocene-distyryl BODIPY-C 60 triad
Authors
Liu J.-Y.El-Khouly M.E.Fukuzumi S.Ng D.K.P.
Ewha Authors
Shunichi Fukuzumi
SCOPUS Author ID
Shunichi Fukuzumiscopus
Issue Date
2012
Journal Title
ChemPhysChem
ISSN
1439-4235JCR Link
Citation
vol. 13, no. 8, pp. 2030 - 2036
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
A ferrocene-distyryl BODIPY dyad and a ferrocene-distyryl BODIPY-C 60 triad are synthesized and characterized. Upon photoexcitation at the distyryl BODIPY unit, these arrays undergo photoinduced electron transfer to form the corresponding charge-separated species. Based on their redox potentials, determined by cyclic voltammetry, the direction of the charge separation and the energies of these states are revealed. Femtosecond transient spectroscopic studies reveal that a fast charge separation (k CS=1.0×10 10 s -1) occurs for both the ferrocene-distyryl BODIPY dyad and the ferrocene-distyryl BODIPY-C 60 triad, but that a relatively slow charge recombination is observed only for the triad. The lifetime of the charge-separated state is 500 ps. Charge recombination of the dyad and triad leads to population of the triplet excited sate of ferrocene and the ground state, respectively. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
DOI
10.1002/cphc.201200167
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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