Publications by authors named "Dora A. Malamatari"

Article Synopsis
  • The study examines the interaction between manganese and salicylhydroxamic ligands in methanol, leading to the creation of 15-membered and 12-membered metallacrown complexes depending on the presence of pyridine.
  • The crystal structures of these metallacrowns feature arrangements of manganese ions and ligands that contribute to unique bending or planar configurations.
  • Antibacterial tests indicate that the manganese metallacrowns are more effective than simpler manganese complexes, with the 15-membered variant demonstrating higher efficiency than the 12-membered one.
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Two mixed-valence Mn(III)Mn(II) complexes and a homo-valence Mn(II) trinuclear manganese complex of stoichiometry Mn(III)Mn(II)Mn(III)(5-Cl-Hsaladhp)(2)(AcO)(4)(MeOH)(2).4CH(3)OH (1a), Mn(III)Mn(II)Mn(III) (Hsaladhp)(2)(AcO)(2)(5-Cl-Sal)(2)(thf)(2) (3a) and Mn(II)Mn(II)Mn(II) (AcO)(6)(pybim)(2) (1b) where H(3)saladhp is a tridentate Schiff base ligand and pybim a neutral bidentate donor ligand, have been structurally characterized by using X-ray crystallography. The structurally characterized mixed-valence complexes have strictly 180 degrees Mn(III)-Mn(II)-Mn(III) angles as required by crystallographic inversion symmetry.

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