Syntheses, structure, and magnetic properties of hexanuclear Mn III 2M III 4 (M = Y, Gd, Tb, Dy) complexes

Qi Wei Xie; Ai Li Cui; Jun Tao; Hui Zhong Kou

doi:10.1039/c2dt30785e

Syntheses, structure, and magnetic properties of hexanuclear Mn ^III ₂M ^III ₄ (M = Y, Gd, Tb, Dy) complexes

Qi Wei Xie, Ai Li Cui, Jun Tao, Hui Zhong Kou^*

^*此作品的通讯作者

科研成果: 期刊稿件 › 文章 › 同行评审

19 引用（Scopus）

摘要

The synthesis and characterizations of a family of isomorphous [Mn ^III ₂M ^III ₄L ₂(μ ₄-O) ₂(N ₃) ₂(CH ₃O) ₂(CH ₃OH) ₄(NO ₃) ₂] ·2H ₂O (M = Y(1), Gd(2), Tb(3), Dy(4)) are reported, where H ₄L = N,N′-dihydroxyethyl-N,N′-(2-hydroxy-4,5- dimethylbenzyl)ethylenediamine. They were obtained from the reactions of H ₄L with M(NO ₃) ₃·6H ₂O, Mn(ClO ₄) ₂·6H ₂O, NaN ₃ and NEt ₃ in a 1:1:1:2:2 molar ratio. The core structure consists of a Mn ₂M ₄ unit. The four M ^III ions that are held together by two μ ₄-bridging oxygen atoms form a butterfly M ₄ moiety. The M ₄ core is further connected to the two five-coordinate trigonal-bipyramidal Mn ^III ions via one μ ₄-O ^2-, two alkyloxo and one methoxo triple bridges. Magnetic susceptibility measurements indicate the presence of intramolecular antiferromagnetic interactions in complex 2, and overall intramolecular ferromagnetic interactions in complexes 3 and 4. The alternating current (AC) magnetic susceptibility studies revealed that complexes 3 and 4 showed frequency-dependent out-of-phase signals, which indicates that they exhibit slow relaxation of the magnetization.

源语言	英语
页（从-至）	10589-10595
页数	7
期刊	Dalton Transactions
卷	41
期	35
DOI	https://doi.org/10.1039/c2dt30785e
出版状态	已出版 - 21 9月 2012
已对外发布	是

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@article{52cf2398ad9e4eeaa76d4c888949e8d6,

title = "Syntheses, structure, and magnetic properties of hexanuclear Mn III 2M III 4 (M = Y, Gd, Tb, Dy) complexes",

abstract = "The synthesis and characterizations of a family of isomorphous [Mn III 2M III 4L 2(μ 4-O) 2(N 3) 2(CH 3O) 2(CH 3OH) 4(NO 3) 2] ·2H 2O (M = Y(1), Gd(2), Tb(3), Dy(4)) are reported, where H 4L = N,N′-dihydroxyethyl-N,N′-(2-hydroxy-4,5- dimethylbenzyl)ethylenediamine. They were obtained from the reactions of H 4L with M(NO 3) 3·6H 2O, Mn(ClO 4) 2·6H 2O, NaN 3 and NEt 3 in a 1:1:1:2:2 molar ratio. The core structure consists of a Mn 2M 4 unit. The four M III ions that are held together by two μ 4-bridging oxygen atoms form a butterfly M 4 moiety. The M 4 core is further connected to the two five-coordinate trigonal-bipyramidal Mn III ions via one μ 4-O 2-, two alkyloxo and one methoxo triple bridges. Magnetic susceptibility measurements indicate the presence of intramolecular antiferromagnetic interactions in complex 2, and overall intramolecular ferromagnetic interactions in complexes 3 and 4. The alternating current (AC) magnetic susceptibility studies revealed that complexes 3 and 4 showed frequency-dependent out-of-phase signals, which indicates that they exhibit slow relaxation of the magnetization.",

author = "Xie, {Qi Wei} and Cui, {Ai Li} and Jun Tao and Kou, {Hui Zhong}",

year = "2012",

month = sep,

day = "21",

doi = "10.1039/c2dt30785e",

language = "English",

volume = "41",

pages = "10589--10595",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "35",

}

TY - JOUR

T1 - Syntheses, structure, and magnetic properties of hexanuclear Mn III 2M III 4 (M = Y, Gd, Tb, Dy) complexes

AU - Xie, Qi Wei

AU - Cui, Ai Li

AU - Tao, Jun

AU - Kou, Hui Zhong

PY - 2012/9/21

Y1 - 2012/9/21

N2 - The synthesis and characterizations of a family of isomorphous [Mn III 2M III 4L 2(μ 4-O) 2(N 3) 2(CH 3O) 2(CH 3OH) 4(NO 3) 2] ·2H 2O (M = Y(1), Gd(2), Tb(3), Dy(4)) are reported, where H 4L = N,N′-dihydroxyethyl-N,N′-(2-hydroxy-4,5- dimethylbenzyl)ethylenediamine. They were obtained from the reactions of H 4L with M(NO 3) 3·6H 2O, Mn(ClO 4) 2·6H 2O, NaN 3 and NEt 3 in a 1:1:1:2:2 molar ratio. The core structure consists of a Mn 2M 4 unit. The four M III ions that are held together by two μ 4-bridging oxygen atoms form a butterfly M 4 moiety. The M 4 core is further connected to the two five-coordinate trigonal-bipyramidal Mn III ions via one μ 4-O 2-, two alkyloxo and one methoxo triple bridges. Magnetic susceptibility measurements indicate the presence of intramolecular antiferromagnetic interactions in complex 2, and overall intramolecular ferromagnetic interactions in complexes 3 and 4. The alternating current (AC) magnetic susceptibility studies revealed that complexes 3 and 4 showed frequency-dependent out-of-phase signals, which indicates that they exhibit slow relaxation of the magnetization.

AB - The synthesis and characterizations of a family of isomorphous [Mn III 2M III 4L 2(μ 4-O) 2(N 3) 2(CH 3O) 2(CH 3OH) 4(NO 3) 2] ·2H 2O (M = Y(1), Gd(2), Tb(3), Dy(4)) are reported, where H 4L = N,N′-dihydroxyethyl-N,N′-(2-hydroxy-4,5- dimethylbenzyl)ethylenediamine. They were obtained from the reactions of H 4L with M(NO 3) 3·6H 2O, Mn(ClO 4) 2·6H 2O, NaN 3 and NEt 3 in a 1:1:1:2:2 molar ratio. The core structure consists of a Mn 2M 4 unit. The four M III ions that are held together by two μ 4-bridging oxygen atoms form a butterfly M 4 moiety. The M 4 core is further connected to the two five-coordinate trigonal-bipyramidal Mn III ions via one μ 4-O 2-, two alkyloxo and one methoxo triple bridges. Magnetic susceptibility measurements indicate the presence of intramolecular antiferromagnetic interactions in complex 2, and overall intramolecular ferromagnetic interactions in complexes 3 and 4. The alternating current (AC) magnetic susceptibility studies revealed that complexes 3 and 4 showed frequency-dependent out-of-phase signals, which indicates that they exhibit slow relaxation of the magnetization.

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U2 - 10.1039/c2dt30785e

DO - 10.1039/c2dt30785e

M3 - Article

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SN - 1477-9226

VL - 41

SP - 10589

EP - 10595

JO - Dalton Transactions

JF - Dalton Transactions

IS - 35

ER -

Syntheses, structure, and magnetic properties of hexanuclear Mn III 2M III 4 (M = Y, Gd, Tb, Dy) complexes

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Syntheses, structure, and magnetic properties of hexanuclear Mn ^III ₂M ^III ₄ (M = Y, Gd, Tb, Dy) complexes