An 18-Membered Hexanuclear Manganese (MnN2)6 Metalladiazamacrocycle
نویسنده
چکیده
The macrocyclic hexanuclear manganese(III) 18-metallacrown-6, [Mn6(pmshz)6(DMF)4(C2H5OH)2]·4DMF (1), where pmshz3− is N-propionyl-N′-5-methylsalicylhydrazide, has been synthesized by self-assembly and structurally characterized. The ring is formed by the succession of six structural moieties of the type [Mn(III)-N-N] with hydrazide N-N groups bridging the ring Mn ions. The ligand enforces the metal ions to form the stereochemistry of a configuration with alternate. . .∆Λ∆Λ . . .type enantiomeric chiral units. The peripheral core ring is ∼18.6 Å in diameter and ∼12.4 Å in thickness. The title metallacrown exhibits photoluminescent properties in the solid state and a weak antiferromagnetic exchange interaction.
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