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Photostability of hydrophobic amides of pyridinecarboxylic acid as copper extractants from chloride media

Paper ID Volume ID Publish Year Pages File Format Full-Text
28901 44104 2007 7 PDF Available
Title
Photostability of hydrophobic amides of pyridinecarboxylic acid as copper extractants from chloride media
Abstract

The photostability of N-alkyl and N,N-dialkylpyridine-3-carboxamide, and N-alkyl and N,N-dialkylpyridine-2-carboxamide, and their copper complexes were studied. The obtained results indicated the influence of light (UV and vis) on the stability of pyridinecarboxamides. The degree of photodegradation depended on the type of solvent, the presence of water, hydrochloric acid or air in the solution. Also, the structure of compounds (the number and position of the amides group, structure of the amides carbon chain) influenced amides photostability. Products of photofragmentation of amides groups and photosubstitution at the pyridine ring were identified. Influence of ions of copper(II) and chloride during the photodegradation of copper complexes with pyridinecarboxamide was analyzed.

Keywords
Photostability; Copper complexes; Pyridinecarboxamide; UV–vis; Photosubstitution
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Photostability of hydrophobic amides of pyridinecarboxylic acid as copper extractants from chloride media
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 185, Issues 2–3, 25 January 2007, Pages 181–187
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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