An 18-Membered Hexanudear Manganese (MnN2)(6) Metalladiazamacrocycle

作者：Liang Qi Feng^*

来源：Zeitschrift fur Naturforschung Section B-A Journal of Chemical Sciences, 2009, 64(7): 779-783.

• 18-Metallacrown-6
• Self-assembly
• Hexanuclear Complex
• Photoluminescence
• Antiferromagnetic Exchange

The macrocyclic hexanuclear manganese(III) 18-metallacrown-6, [Mn-6(pmshz)(6)(DMF)(4)(C2H5OH)(2)]center dot 4DMF(1), where pmshz(3-) 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... Delta Lambda Delta Lambda...-type enantiomeric chiral units. The peripheral core ring is similar to 18.6 angstrom in diameter and similar to 12.4 angstrom in thickness. The title metallacrown exhibits photoluminescent properties in the solid state and a weak antiferromagnetic exchange interaction.

• 出版日期2009-7
• 单位嘉应学院