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Tuning the Sensitivity of Fluorescent Porphyrin Dimers to Viscosity and Temperature
Author(s) -
Vyšniauskas Aurimas,
Ding Dong,
Qurashi Maryam,
Boczarow Igor,
Balaz Milan,
Anderson Harry L.,
Kuimova Marina K.
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201700740
Subject(s) - porphyrin , fluorescence , viscosity , dimer , sensitivity (control systems) , photochemistry , conjugated system , chemistry , materials science , polymer , organic chemistry , optics , physics , electronic engineering , composite material , engineering
Conjugated porphyrin dimers have emerged as versatile viscosity‐sensitive fluorophores that are suitable for quantitative measurements of microscopic viscosity by ratiometric and fluorescence lifetime‐based methods, in a concentration‐independent manner. Here, we investigate the effect of extended conjugation in a porphyrin‐dimer structure on their ability to sense viscosity and temperature. We show that the sensitivity of the fluorescence lifetime to temperature is a unique property of only a few porphyrin dimers.
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