Studying the intersystem crossing rate and triplet quantum yield of meso-substituted porphyrins by means of pulse train fluorescence technique
Citation:
De Souza T.G.B, Vivas M.G, Mendonça C.R, Plunkett S, Filatov M.A, Senge M.O, De Boni L, Studying the intersystem crossing rate and triplet quantum yield of meso-substituted porphyrins by means of pulse train fluorescence technique, Journal of Porphyrins and Phthalocyanines, 20, 1-4, 2016, 282 - 291Download Item:
Abstract:
Excited state dynamics, particularly intersystem crossing, of a set of meso-substituted
porphyrins bearing different electron-donor and acceptor groups was studied by pulse train fluorescence
technique. Triplet quantum yield was found to be critically dependent on the nature of meso-substituents
in the porphyrin system. Porphyrins with meso methoxyphenyl groups were found to show high triplet
quantum yields (ϕT between 0.70 and 0.81). Moreover, the quantity of methoxyphenyl groups and the
substitution pattern directly influence ϕT. Alternatively, porphyrins attached to nitrophenyl group possess
low triplet quantum yield values (~0.3). The observed structure-properties relationships suggest new ways
for tuning the optical properties of porphyrins via chemical modification.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
14/TIDA/2362
Science Foundation Ireland (SFI)
13/1A/1894
Author's Homepage:
http://people.tcd.ie/sengemDescription:
PUBLISHEDCited By :1 Export Date: 8 December 2016
Author: SENGE, MATHIAS
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Journal ArticleCollections
Series/Report no:
Journal of Porphyrins and Phthalocyanines20
1-4
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Full text availableKeywords:
porphyrinsDOI:
http://dx.doi.org/10.1142/S1088424616500048Metadata
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