Title of article
Raman spectroscopic study of base catalyzed di- and trimerization of malononitrile in ionic liquids and water
Author/Authors
Lَpez-Pastor، نويسنده , , Mercedes and Domيnguez-Vidal، نويسنده , , Ana and Ayora-Caٌada، نويسنده , , Maria José and Valcلrcel، نويسنده , , Miguel and Lendl، نويسنده , , Bernhard، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
7
From page
146
To page
152
Abstract
Multivariate Curve Resolution (MCR) and Two-Dimensional Correlation Spectroscopy (2DCoS) have been employed to analyze the Raman spectra recorded from the reaction of malononitrile with KOH carried out in the ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and water. In both cases the carbanion, which is formed by deprotonation of malononitrile, could be detected spectroscopically. When using the ionic liquid as solvent formation of the dimer was observed, whereas in aqueous solution a trimer was formed by a subsequent Michael addition. Based on the component spectra and concentration profiles obtained from MCR analysis the reaction intermediates as well as products could be identified. 2DCoS was very helpful in corroborating these results.
Keywords
2D correlation spectroscopy , Multivariate curve resolution , Raman spectroscopy , Ionic liquids , Malononitrile
Journal title
Journal of Molecular Structure
Serial Year
2006
Journal title
Journal of Molecular Structure
Record number
1963375
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