[M(N-3)(2)(H2O)(2)]center dot(bpeado): Unusual Antiferromagnetic Heisenberg Chain (M = Mn) and Ferromagnetic Ising Chain (M = Co) with Large Coercivity and Magnetic Relaxation (bpeado=1,2-Bis(4-pyridyl)ethane-N,N '-dioxide)
文献类型:期刊论文
作者 | Sun, Hao-Ling1,2; Wang, Zhe-Ming1; Gao, Song1 |
刊名 | CHEMISTRY-A EUROPEAN JOURNAL
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出版日期 | 2009 |
卷号 | 15期号:7页码:1757-1764 |
关键词 | Azides Heisenberg Chain Ising Chain Magnetic Properties Single-chain Magnets |
ISSN号 | 0947-6539 |
DOI | 10.1002/chem.200801685 |
英文摘要 | We present here the structures and magnetism of two isostructural magnetic metal-azido chain compounds of the type [M(N-3)(2)(H2O)(2)]center dot(bpeado) (1, M = Mn; 2, M = Co; bpeado 1,2-bis(4-pyridyl)ethane-N,N'-dioxide), prepared by utilizing the long spacer bpeado. The structure is composed of [M(N-3)(2)(H2O)(2)](n) metal-azido chains, in which metal lions are bridged by two end-on azido ligands, and the chains are further supported by H-bonding interactions between the coordination water of the chain and the lattice bpeado in a three-dimensional (3D) threefold interpenerated H-bonded framework. Within the structure, the metal-azido chains are seperated quite well. Investigation has revealed that the Mn compound 1 is an isotropic Heisenberg chain with unusual antiferromagnetic coupling between the Mn2+ ions linked by double end-on azide anions. The Co compound 2 shows a strong anisotropic Ising-type ferromagnetic chain within the material. Detailed magnetic studies on both polycrystalline and single-crystal samples of 2 have revealed a large coercivity of up to 37.5 kOe (along the crystallographic b-axis), multi-magnetic transitions, and single-chain-magnet-like magnetic relaxation behavior. |
语种 | 英语 |
WOS记录号 | WOS:000263345100025 |
出版者 | WILEY-V C H VERLAG GMBH |
源URL | [http://ir.iccas.ac.cn/handle/121111/68015] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Wang, Zhe-Ming |
作者单位 | 1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China |
推荐引用方式 GB/T 7714 | Sun, Hao-Ling,Wang, Zhe-Ming,Gao, Song. [M(N-3)(2)(H2O)(2)]center dot(bpeado): Unusual Antiferromagnetic Heisenberg Chain (M = Mn) and Ferromagnetic Ising Chain (M = Co) with Large Coercivity and Magnetic Relaxation (bpeado=1,2-Bis(4-pyridyl)ethane-N,N '-dioxide)[J]. CHEMISTRY-A EUROPEAN JOURNAL,2009,15(7):1757-1764. |
APA | Sun, Hao-Ling,Wang, Zhe-Ming,&Gao, Song.(2009).[M(N-3)(2)(H2O)(2)]center dot(bpeado): Unusual Antiferromagnetic Heisenberg Chain (M = Mn) and Ferromagnetic Ising Chain (M = Co) with Large Coercivity and Magnetic Relaxation (bpeado=1,2-Bis(4-pyridyl)ethane-N,N '-dioxide).CHEMISTRY-A EUROPEAN JOURNAL,15(7),1757-1764. |
MLA | Sun, Hao-Ling,et al."[M(N-3)(2)(H2O)(2)]center dot(bpeado): Unusual Antiferromagnetic Heisenberg Chain (M = Mn) and Ferromagnetic Ising Chain (M = Co) with Large Coercivity and Magnetic Relaxation (bpeado=1,2-Bis(4-pyridyl)ethane-N,N '-dioxide)".CHEMISTRY-A EUROPEAN JOURNAL 15.7(2009):1757-1764. |
入库方式: OAI收割
来源:化学研究所
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