Mixed complexes of cobalt(III) with phenanthroline and galactose or arabinose
MetadataShow full item record
Mixed complexes of bis-phenanthroline cobalt(III) and α-D-galactose or β-D- or L-arabinose are identified in aqueous solution from their 1H NMR and circular dichroism (CD) spectra. Galactose forms only the Δ-complex, but D-arabinose gives preferentially Δ-, and L-arabinose preferentially Λ-complexes, consistent with structural optimization with PM3 (tm) parameters. The Λ-complex is formed initially from β-D-arabinose, but the Δ-complex is preferred thermodynamically. Examination of the absorption and CD spectra gives information on configuration at cobalt(III) and allows assignments of electronic transitions in Co(III) and the phenanthroline residues. © 2001 Elsevier Science Ltd. All rights reserved.
Artículo de publicación SCOPUS
Quote ItemPolyhedron, Volumen 20, Issue 17, 2018, Pages 2223-2230
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile
Showing items related by title, author, creator and subject.
Synthesis and X-ray structure of the rhenium methyl complex trans-Cp*Re(CO)(2)(Me)I and a study of the products of photolysis of the rhenium alkyl methyl and dimethyl complexes Cp*Re(CO)(2)(Me)R (R = Ph, p-tolyl, Me) under CO Leiva, Carmen; Klahn, A. Hugo; Godoy, Fernando; Toro, Adriana; Manríquez Castro, Víctor; Wittke, Oscar; Sutton, Derek (American Chemical Society, 1999-02)Reaction of Cp*Re(CO)(2)I-2 with methylcopper affords cis-Cp*Re(CO)(2)(Me)I, which converts to the trans isomer on prolonged reaction or in the presence of neutral alumina. The X-ray structure of the trans isomer has been ...
Measurement of metal-complexing ability of polyfunctional macromolecules: a discussion of the relationship between the metal-complexing properties of extracted soil organic matter and soil genesis and plant nutrition Zunino Venegas, Hugo; Peirano V., Pedro; Aguilera S., S. María; Schalscha B., Eduardo (The Williams & Wilkins Co., 1975)Characterization of the metal-complexing ability of polyfunctional macromolecules through the determination of stability constants of their metalic complexes is discussed along with the validity of ascribing a relationship ...
Zunino Venegas, Hugo; Peirano V., Pedro; Aguilera S., S. María; Escobar, I. (The Williams & Wilkins Co., 1972)When the maximum complexing ability (MCA) of water-soluble complexants of unknown molecular weight is known, it is possible to calculate the stability constants of metal complexes where these complexants participate (2,4,5). ...