Publication detail

Experimental and theoretical study of the first vanadocene(IV) complexes of alpha-amino acids prepared from vanadocene dichloride

Authors: Vinklárek Jaromír | Paláčková Hana | Honzíček Jan

Year: 2004

Type of publication: článek v odborném periodiku

Name of source: Collection of Czechoslovak Chemical Communications

Publisher name: Ústav organické chemie a biochemie AV ČR

Place: Praha

Page from-to: 811-821

Titles:

Language	Name	Abstract	Keywords
cze	Experimentální a teoretické studie prvních vanadocenových komplexů alfa-aminokyselin připravených z vanadocendichloridu	Experimentální a teoretické studie prvních vanadocenových komplexů alfa-aminokyselin připravených z vanadocendichloridu
eng	Experimental and theoretical study of the first vanadocene(IV) complexes of alpha-amino acids prepared from vanadocene dichloride	The first bioinorganic vanadocene(IV) complexes of alpha-amino acids ([Cp2V(aa)]Cl, Cp = eta(5)-C5H5, aa = glycine, L-alanine, L- valine) were prepared by reaction of vanadocene dichloride ([Cp2VCl2]) and alpha-amino acids in aqueous methanol. Analogous cationic complexes with PF6- counterions were obtained by metathetical reactions of the chloride precursors with KPF6. These compounds are of great interest as model systems for the vanadocene moiety binding to proteins. All complexes have been characterized by elemental analyses and IR, Raman and EPR spectroscopies. On the basis of EPR spectra, a chelate in all the studied complexes was proposed, formed by the carboxylato and amino groups. This structure has also been confirmed by density functional theory (DFT) calculations.	vanadocene dichloride; metallocenes; vanadium; amino acids; antitumor activity; EPR spectroscopy; density functional theory; DFT calculations

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