A study of the IR spectra of copigments formed by malvin chloride with flavones

Research into the essence of the process of copigmentation of anthocyan molecules was continued by applying IR spectroscopy, in an attempt to elucidate the formation mechanism of copigment molecules between malvin chloride and several variously substituted flavones. Analysis of the IR spectra of the...

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Bibliographic Details
Published in:Journal of the Serbian Chemical Society 2000-01, Vol.65 (4), p.245-253
Main Authors: Mioč Ubavka B., Dimitrić-Marković Jasmina M., Baranac Jelisaveta M.
Format: Article
Language:English
Subjects:
copigmentation
flavones
ir spectra
malvin
Online Access:Get full text
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Summary:Research into the essence of the process of copigmentation of anthocyan molecules was continued by applying IR spectroscopy, in an attempt to elucidate the formation mechanism of copigment molecules between malvin chloride and several variously substituted flavones. Analysis of the IR spectra of the formed copigments revealed that the process of copigmentation is achieved via the formation of hydrogen bonds. The strength of the formed hydrogen bonds was correlated with the equilibrium constants of the processes of copigmentation of these molecules. The found correlation was in accordance with the supposed mechanism of the copigmentation reaction.
ISSN:0352-5139
1820-7421
DOI:10.2298/JSC0004245M