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

doi:10.1016/j.poly.2006.09.061

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^*

^*此作品的通信作者

化學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

6 引文斯高帕斯（Scopus）

摘要

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 Mn₃^II Mn₃^III hexanuclear complex [Mn₆O₂(O₂CPh)₈L₃] (1). Complex 1 contains a [Mn₃^II Mn₃^III (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.

原文	英語
頁（從 - 到）	1805-1810
頁數	6
期刊	Polyhedron
卷	26
發行號	9-11
DOIs	https://doi.org/10.1016/j.poly.2006.09.061
出版狀態	已發佈 - 2007 6月 15

ASJC Scopus subject areas

物理與理論化學
無機化學
材料化學

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@article{8a45ca6c08984997838f70a2713482c9,

title = "Synthesis, structure, and magnetic properties of a hexanuclear manganese complex",

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 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.",

keywords = "Hexanuclear manganese complex, Magnetic anisotropy, Nanoscale magnet, Single-molecule magnet, Superparamagnet, β-diketonate ligand",

author = "Yang, {Chen I.} and Tsai, {Yu Jhe} and George Chung and Kuo, {Ting Shen} and Minghuey Shieh and Tsai, {Hui Lien}",

note = "Funding Information: The magnetic measurements were obtained from SQUID (MPMS XL-7) in NSYSU and we thank the National Science Council of Taiwan (NSC-94-2113-M-006-011) for financial support. ",

year = "2007",

month = jun,

day = "15",

doi = "10.1016/j.poly.2006.09.061",

language = "English",

volume = "26",

pages = "1805--1810",

journal = "Polyhedron",

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TY - JOUR

T1 - Synthesis, structure, and magnetic properties of a hexanuclear manganese complex

AU - Yang, Chen I.

AU - Tsai, Yu Jhe

AU - Chung, George

AU - Kuo, Ting Shen

AU - Shieh, Minghuey

AU - Tsai, Hui Lien

N1 - Funding Information: The magnetic measurements were obtained from SQUID (MPMS XL-7) in NSYSU and we thank the National Science Council of Taiwan (NSC-94-2113-M-006-011) for financial support.

PY - 2007/6/15

Y1 - 2007/6/15

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.

KW - Hexanuclear manganese complex

KW - Magnetic anisotropy

KW - Nanoscale magnet

KW - Single-molecule magnet

KW - Superparamagnet

KW - β-diketonate ligand

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JO - Polyhedron

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

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