Title of article
The cations and anions of cyclobutanetetraone poly(phenylhydrazones) Original Research Article
Author/Authors
Hassan S. El Khadem، نويسنده , , M. Ashraf Shalaby، نويسنده , , Bruce Coxon، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
10
From page
61
To page
70
Abstract
Six cyclobutanetetraone poly(arylhydrazones) have been treated with acids and bases, and the structures of the resulting anions and cations studied by UV–Vis absorption and NMR spectroscopy. In acid media, all the hydrazones studied formed cations, which exhibited bathochromic shifts due to the extension of their resonance systems. However, in bases, only some (those which could enolize) formed anions that exhibited hypsochromic shifts; the others were unaltered.
Keywords
Enolization , Cations , Anions , UV–Vis spectrophotometry , NMR spectroscopy , Hypsochromic shift , Cyclobutanetetraone poly(phenylhydrazones) , Bathochromic shift
Journal title
Carbohydrate Research
Serial Year
2001
Journal title
Carbohydrate Research
Record number
963270
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