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Fluorescence self-quenching of substituted N,α-diphenylnitrones in various solvents

Paper ID Volume ID Publish Year Pages File Format Full-Text
28687 44085 2006 10 PDF Available
Title
Fluorescence self-quenching of substituted N,α-diphenylnitrones in various solvents
Abstract

Photophysical and photochemical properties for N,α-diphenylnitrone 1a, α-p-methoxyphenyl-N-phenylnitrone 1b, N-(t-butyl)-α-phenylnitrone 1c, cis-α-cyano-N,α-diphenylnitrone 1d, trans-α-cyano-N,α-diphenylnitrone 1e, α-methoxycarbonyl-N,α-diphenylnitrone 1f and α-ethoxycarbonyl-N,α-diphenylnitrone 1g were investigated. Photolysis studies in polar and protic solvent such as ethanol revealed that the singlet-state formation was preferred in nitrones and this was confirmed by the fluorescence investigations. Absorption and fluorescence spectra indicated considerable shifts with variation in polarity of the solvent.

Keywords
Nitrone; Singlet state; Self-quenching; Fluorescence spectra; Photolysis
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Fluorescence self-quenching of substituted N,α-diphenylnitrones in various solvents
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 177, Issues 2–3, 25 January 2006, Pages 276–285
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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