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Intramolecular energy transfer in rhodamine–phthalocyanine conjugates

Paper ID Volume ID Publish Year Pages File Format Full-Text
28982 44112 2008 8 PDF Available
Title
Intramolecular energy transfer in rhodamine–phthalocyanine conjugates
Abstract

Conjugates of tetrasulphosubstituted zinc phthalocyanine with rhodamine 6G or rhodamine B have been synthesized and characterized to have four rhodamine 6G or average two rhodamine B residues per phthalocyanine molecule. The ionized conjugates (positive charge on the rhodamine part) are non-soluble in water. Photochemical and photophysical measurements, carried out in dimethylsulphoxide, have shown that the main result of conjugation is efficient intramolecular energy transfer from rhodamine to phthalocyanine part of molecular system. The conjugation results in about twofold decrease of quantum yields for photodegradation, fluorescence and singlet oxygen photogeneration.

Keywords
Rhodamine; Phthalocyanine; Conjugate; Intramolecular energy transfer
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Intramolecular energy transfer in rhodamine–phthalocyanine conjugates
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 200, Issues 2–3, 15 December 2008, Pages 161–168
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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