A novel 18-metallacrown-6 complex: Synthesis, structural characterization and magnetic properties

The novel 18-metallacrown-6 complex, with the formula of [Mn 6(C 11H 11N 2O 3) 6(CH 3CH 2OH) 6]·3C 3H 7NO·2CH 3CH 2OH ( 1) (pmshz = N-propanoyl-3-methyl-salicylhydrazide), has been prepared and characterized. The self-assembled, manganese complex assumes a nearly planar cyclic structure with an [Mn–...

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Veröffentlicht in:	Solid state sciences 2009-11, Vol.11 (11), p.1919-1922
Hauptverfasser:	Shu, Tian-Pin, Wen, Jun-Long, Feng, Hai-Mei, Lei, Ke-Wei, Liang, Hong-Ze
Format:	Artikel
Sprache:	eng
Schlagworte:	18-Metallacrown-6 Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Crystal structure Exact sciences and technology Magnetic properties Manganese complexes Materials science Methods of nanofabrication Physics Self-assembly Structure of solids and liquids crystallography Structure of specific crystalline solids
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Zusammenfassung:	The novel 18-metallacrown-6 complex, with the formula of [Mn 6(C 11H 11N 2O 3) 6(CH 3CH 2OH) 6]·3C 3H 7NO·2CH 3CH 2OH ( 1) (pmshz = N-propanoyl-3-methyl-salicylhydrazide), has been prepared and characterized. The self-assembled, manganese complex assumes a nearly planar cyclic structure with an [Mn–N–N] 6 backbone. Due to the coordination, the ligand enforces the stereochemistry of the Mn 3+ ions as a propeller shape with alternating …ΔΛΔΛ… configurations. The magnetic properties of the metallacrown molecule are characterized by a weak antiferromagnetic exchange interaction between the Mn 3+ ion spins with S = 2 in the cyclic system. [Display omitted]
ISSN:	1293-2558 1873-3085
DOI:	10.1016/j.solidstatesciences.2009.07.014