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Study of resonance effects in copper phthalocyanines

Paper ID Volume ID Publish Year Pages File Format Full-Text
28532 44080 2006 8 PDF Available
Title
Study of resonance effects in copper phthalocyanines
Abstract

The purpose of this paper is to follow the influence of chlorine or fluorine substituents of phthalocyanine dyes on their spectroscopic, photothermal and photoelectric properties. Such influence is discussed in term of the resonance effects occurring in organic macrocycles. The domination of mesomeric effect was indicated due to the large enhancement of photocurrent created by the studied systems and other changes in spectroscopic and photothermal properties of the investigated phthalocyanines. The occurrence of steric effect was supported by the photothermal experiments. The differences between electronegative substituents of phthalocyanine dyes on photophysical properties of macromolecular systems are also discussed.

Keywords
BCP, bromocresol purple; DMSO, dimethylsulfoxide; Pc, phthalocyanine; PEC, photoelectrochemical cell; LIOAS, laser-induced optoacoustic spectroscopy; PAS, photoacoustic spectroscopy/signal; TD, thermal deactivationResonance effects; Spectral methods; Phot
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 181, Issues 2–3, 31 July 2006, Pages 180–187
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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