Synthesis, structure, and magnetic properties of a hexanuclear manganese complex

Chen I. Yang, Yu Jhe Tsai, George Chung, Ting Shen Kuo, Minghuey Shieh, Hui Lien Tsai

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The reaction of 1-(2-pyridyl)-3-(p-tolyl)propane-1,3-dione (HL) with [Mn3O(O2CPh)6(H2O)(py)2] in CH2Cl2 affords a mixed-valence Mn3II Mn3III hexanuclear complex [Mn6O2(O2CPh)8L3] (1). Complex 1 contains a [Mn3II Mn3III4 - O)2]11 + core, which is a new structural type in the family of Mn6 complexes. Variable temperature magnetic susceptibility and magnetization measurement of complex 1 have been carried out. The magnetic data indicate that complex 1 has a ground state spin value of S = 7/2 with significant magnetoanisotropy as gauged by the D value of -0.46 cm-1. The frequency dependence of the out-of-phase component in alternating current magnetic susceptibilities for complex 1 indicates the slow magnetic relaxation of a superparamagnetic molecule.

Original languageEnglish
Pages (from-to)1805-1810
Number of pages6
JournalPolyhedron
Volume26
Issue number9-11
DOIs
Publication statusPublished - 2007 Jun 15

Fingerprint

Manganese
Magnetic susceptibility
manganese
Magnetic properties
magnetic properties
Magnetic relaxation
magnetic permeability
Propane
magnetic relaxation
Dione
synthesis
propane
Ground state
Magnetization
alternating current
valence
magnetization
Molecules
ground state
molecules

Keywords

  • Hexanuclear manganese complex
  • Magnetic anisotropy
  • Nanoscale magnet
  • Single-molecule magnet
  • Superparamagnet
  • β-diketonate ligand

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Yang, C. I., Tsai, Y. J., Chung, G., Kuo, T. S., Shieh, M., & Tsai, H. L. (2007). Synthesis, structure, and magnetic properties of a hexanuclear manganese complex. Polyhedron, 26(9-11), 1805-1810. https://doi.org/10.1016/j.poly.2006.09.061

Synthesis, structure, and magnetic properties of a hexanuclear manganese complex. / Yang, Chen I.; Tsai, Yu Jhe; Chung, George; Kuo, Ting Shen; Shieh, Minghuey; Tsai, Hui Lien.

In: Polyhedron, Vol. 26, No. 9-11, 15.06.2007, p. 1805-1810.

Research output: Contribution to journalArticle

Yang, CI, Tsai, YJ, Chung, G, Kuo, TS, Shieh, M & Tsai, HL 2007, 'Synthesis, structure, and magnetic properties of a hexanuclear manganese complex', Polyhedron, vol. 26, no. 9-11, pp. 1805-1810. https://doi.org/10.1016/j.poly.2006.09.061
Yang, Chen I. ; Tsai, Yu Jhe ; Chung, George ; Kuo, Ting Shen ; Shieh, Minghuey ; Tsai, Hui Lien. / Synthesis, structure, and magnetic properties of a hexanuclear manganese complex. In: Polyhedron. 2007 ; Vol. 26, No. 9-11. pp. 1805-1810.
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N2 - The reaction of 1-(2-pyridyl)-3-(p-tolyl)propane-1,3-dione (HL) with [Mn3O(O2CPh)6(H2O)(py)2] in CH2Cl2 affords a mixed-valence Mn3II Mn3III hexanuclear complex [Mn6O2(O2CPh)8L3] (1). Complex 1 contains a [Mn3II Mn3III (μ4 - O)2]11 + core, which is a new structural type in the family of Mn6 complexes. Variable temperature magnetic susceptibility and magnetization measurement of complex 1 have been carried out. The magnetic data indicate that complex 1 has a ground state spin value of S = 7/2 with significant magnetoanisotropy as gauged by the D value of -0.46 cm-1. The frequency dependence of the out-of-phase component in alternating current magnetic susceptibilities for complex 1 indicates the slow magnetic relaxation of a superparamagnetic molecule.

AB - The reaction of 1-(2-pyridyl)-3-(p-tolyl)propane-1,3-dione (HL) with [Mn3O(O2CPh)6(H2O)(py)2] in CH2Cl2 affords a mixed-valence Mn3II Mn3III hexanuclear complex [Mn6O2(O2CPh)8L3] (1). Complex 1 contains a [Mn3II Mn3III (μ4 - O)2]11 + core, which is a new structural type in the family of Mn6 complexes. Variable temperature magnetic susceptibility and magnetization measurement of complex 1 have been carried out. The magnetic data indicate that complex 1 has a ground state spin value of S = 7/2 with significant magnetoanisotropy as gauged by the D value of -0.46 cm-1. The frequency dependence of the out-of-phase component in alternating current magnetic susceptibilities for complex 1 indicates the slow magnetic relaxation of a superparamagnetic molecule.

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