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Photolysis mechanism of a squarylium dye

Paper ID Volume ID Publish Year Pages File Format Full-Text
26916 43986 2010 5 PDF Available
Title
Photolysis mechanism of a squarylium dye
Abstract

The photodegradation mechanism of a squarylium dye was investigated by analyzing the photoproducts using a UV–Vis spectrometer, MALDI-TOF-MASS, HPLC and GC–MS. We found that a squarylium dye was likely decomposed into smaller species by way of an intermediate species which was an adduct of an original dye with a solvent molecule or solvent radical. The reaction mechanism was confirmed using the quantum chemical calculation by estimating the structure of the intermediate species. Since the solvent molecules are involved in the reaction, the reaction rate depended on the used solvent, and the photodegradation rate was much faster in a chloromethane than in an alcohol.

Keywords
Squarylium dye; Photodegradation mechanism; Decomposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 214, Issues 2–3, 15 August 2010, Pages 264–268
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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