Publication
Title
Photoreduction and light-induced triplet-state formation in a single-site fluoroalkylated zinc phthalocyanine
Author
Abstract
Electron-withdrawing perfluoroalkyl peripheral substituents enhance the photosensitizing properties of metal phthalocyanines while increasing their solubility, thus providing opportunities for advanced characterization of their catalytically-relevant excited states. Optical absorption and electron paramagnetic resonance (EPR) spectroscopy experiments reveal that red light induces the reduction of perfluoroisopropyl-substituted zinc(II) phthalocyanine (F64PcZn) dissolved in ethanol. A similar photoreduction does not occur in toluene. Furthermore, intense UV irradiation causes the photodegradation of F64PcZn in ethanol, but low power UV illumination favours the formation of the triplet excited state, a prerequisite for new photocatalytic applications. The UV-induced triplet state of F64PcZn is characterized using a combination of transient EPR experiments and DFT computations.
Language
English
Source (journal)
Journal of the Chemical Society: Dalton transactions. - London
Publication
London : 2014
ISSN
0300-9246
1477-9226
1472-7773
Volume/pages
43:40(2014), p. 14942-14948
ISI
000343023200005
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 10.12.2014
Last edited 12.06.2017
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