Ligand directed structural diversity and magnetism in copper(ii)-azido assemblies with isomeric aminopyridines: synthesis, structure, magnetism and theoretical studies.

Four new copper complexes, viz. [{Cu(2-aminopyridine)(N)(HO)}] (1), [Cu(3-aminopyridine)(N)] (2), [{Cu(3-aminopyridine)(N)}] (3), and [Cu(4-aminopyridine)(N)] (4), have been synthesized with isomeric aminopyridines, viz. 2-aminopyridine (2-ap), 3-aminopyridine (3-ap), and 4-aminopyridine (4-ap), to probe the role of ligand and reactant molar ratios in directing the polynuclear assemblage and the associated magnetic properties.