The magnetic exchange interaction in bi- and tetranuclear copper(II) complexes with the bis-azomethine of 1,3-diaminopropanol-2 and 4-hydroxy-3-formylcoumarin with an azide exogenous bridge

By proper choice of substituents on the aldehyde and amine, the nature of Schiff base formed (fully condensed or half condensed) could be tuned by the templating effect of the metal ion. Condensation of 5-chlorosalicylaldehyde with ethylene diamine in the presence of Co(II) or Cu(II) and azido anions have afforded two new half condensed Schiff base metal complexes [CuL(µ1,1-N 3)] 2 (1) and [CoL 2 ]N 3 •H 2 O (2), where L = (E)-2-((2-aminoethyl)methyl)-4chlorophenol that were structurally characterized by X-ray analysis, IR and UV spectra. Complex 1 is an asymmetric µ-1,1 azide bridged dimer displaying weak antiferromagnetic interactions (J =-2.93 ± 0.03 cm-1), in agreement with the axial-equatorial N 3-linkage between the two copper centers. Complex 2 is a monomer of low spin Co(III).

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The magnetic exchange interaction in bi- and tetranuclear copper(II) complexes with the bis-azomethine of 1,3-diaminopropanol-2 and 4-hydroxy-3-formylcoumarin with an azide exogenous bridge

Cited by 4 publications

References 60 publications

Ligand mediated structural diversity of copper(II)-azido moiety: Synthesis, structure and magnetic study

Ligand mediated structural diversity of copper(II)-azido moiety: Synthesis, structure and magnetic study

Synthesis, structure and properties of a novel self-assembled tetranuclear copper(II) complex derived from carboxylate-based multidentate ligand

Template directed synthesis of half condensed Schiff base complexes of Cu(II) and Co(III): Structural and magnetic studies

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