Tautomerism of metal complexes with carminic acid

Tautomerism of metal complexes with carminic acid

The diversity of the absorption spectra of complexes with carminic acid was shown to be due to the shift of tautomeric equilibria that takes place upon the change in the medium pH, the nature of the metal, and the composition of the complex. A classification of known carminic acid complexes based on...

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Veröffentlicht in:Russian journal of coordination chemistry 2008-04, Vol.34 (4), p.310-314
Hauptverfasser: Fain, V. Ya, Zaitsev, B. E., Ryabov, M. A.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectra
Chemistry
Chemistry and Materials Science
Coordination compounds
Correlation analysis
Inorganic Chemistry
Physical Chemistry
Quantum chemistry
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Zusammenfassung:The diversity of the absorption spectra of complexes with carminic acid was shown to be due to the shift of tautomeric equilibria that takes place upon the change in the medium pH, the nature of the metal, and the composition of the complex. A classification of known carminic acid complexes based on the results of correlation analysis of the positions of experimental π l ,π* absorption bands with those calculated by PPP quantum chemical methods is proposed.
ISSN:1070-3284
1608-3318
DOI:10.1134/S1070328408040118