An 18-Membered Hexanuclear Manganese (MnN2)6 Metalladiazamacrocycle
Keyword(s):
The macrocyclic hexanuclear manganese(III) 18-metallacrown-6, [Mn6(pmshz)6(DMF)4(C2H5- OH)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. . .ΔΛΔΛ. . .- type enantiomeric chiral units. The peripheral core ring is ~18.6 in diameter and ~12.4 Å in thickness. The title metallacrown exhibits photoluminescent properties in the solid state and a weak antiferromagnetic exchange interaction.
1999 ◽
Vol 68
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pp. 3436-3438
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2016 ◽
Vol 49
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pp. 505001
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2002 ◽
Vol 241
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pp. 371-380
2012 ◽
Vol 81
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pp. 095001
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