Abstract
Some ruthenium(II) chiral Schiff base complexes of the composition [RuL(PPh 3) (H 2() 2] (1–3), where L = chiral Schiff bases derived from salicylaldehyde and L-amino acids, namely L-phenylalanine, L-tyrosine and L-methionine, have been synthesized. The interaction of the complexes with π-acceptor ligands such as 2,2′-bipyridyl and 1,10-phenanthroline gives substituted mixed-ligand complexes. The characterization of the complexes was accomplished by microanalysis, IR, UV-vis, 1H, 13C[ 1H] and 31P[ 1H] NMR spectroscopy, conductance measurements, electrochemical studies, optical rotation and circular dichroism spectra. The conformational aspects regarding the asymmetric arrangement of substituents at the amino acid moity of the Schiff bases, as well as the effect of the π-acceptor ligand around the ruthenium(II) metal ion, have been discussed. The complexes show irreversible behaviour and the redox potentials of the Ru II/Ru I couples are less negative in 4–9 than those of the parent chiral Schiff base complexes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
