氰根桥联Fe(Ⅲ)-Cu(Ⅱ)双金属配合物的合成及磁性研究

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (2): 215.

氰根桥联Fe(Ⅲ)-Cu(Ⅱ)双金属配合物的合成及磁性研究

崔爱莉, 倪为为, 寇会忠

清华大学化学系, 北京 100084

收稿日期:2009-07-16 出版日期:2010-02-10 发布日期:2010-02-10
通讯作者: 寇会忠, 男, 博士, 教授, 主要从事功能配位化学研究. E-mail: kouhz@mail.tsinghua.edu.cn
基金资助:
国家“九七三”项目(批准号: 2009CB623301)和国家自然科学基金(批准号: 20671055)资助.

Synthesis and Magnetic Property of Cyanide-bridged Fe(Ⅲ)-Cu(Ⅱ) Complexes

CUI Ai-Li, NI Wei-Wei, KOU Hui-Zhong*

Department of Chemistry, Tsinghua University, Beijing 100084, China

Received:2009-07-16 Online:2010-02-10 Published:2010-02-10
Contact: KOU Hui-Zhong. E-mail: kouhz@mail.tsinghua.edu.cn
Supported by:
国家“九七三”项目(批准号: 2009CB623301)和国家自然科学基金(批准号: 20671055)资助.

摘要/Abstract

摘要：

基于五氰构筑单元[Fe(CN)₅L]^2-[L=1-甲基咪唑(1-Meim), 咪唑(Him)]和铜大环配离子合成了3个氰根桥联Fe(Ⅲ)-Cu(Ⅱ)双金属配合物, 并研究了它们的晶体结构和磁性. 单晶结构分析表明, 3个化合物为一维链状的Fe^Ⅲ-Cu^Ⅱ配合物, 铜离子的配位构型为拉长八面体结构, 轴向由2个[Fe(CN)₅L]^2-上的氰根氮原子配位, 而每个[Fe(CN)₅L]^2-用2个氰根桥联2个铜离子, 得到1个交替一维链结构. 磁性研究表明, 其中2个配合物呈铁磁相互作用, 1个呈少见的反铁磁耦合.

关键词: 铜; 铁; 氰根; 晶体结构; 磁性

Abstract:

Three cyanide-bridged Fe(Ⅲ)-Cu(Ⅱ) complexes derived from[Fe(CN)₅L]^2-[L=1-methyl-imidazole(1-Meim) or imidazole(Him)] and Cu(Ⅱ) macrocyclic building blocks were synthesized and their crystal structures and magnetic properties were studied. Structural analysis shows that they have one-dimensional chain structures. Each Cu(Ⅱ) ion possesses an elongated coordination geometry with two cyanide nitrogen atoms situated at the trans axial positions, and in turn each Fe(Ⅲ) connects two Cu(Ⅱ) ions with two cyanide ligands, generating alternate chainlike structures. Magnetic measurements show that two complexes display ferromagnetic interaction, and one compound exhibits unusual antiferromagnetic property.

Key words: Copper; Iron; Cyanide ligand; Crystal structure; Magnetic property

TrendMD:

崔爱莉, 倪为为, 寇会忠. 氰根桥联Fe(Ⅲ)-Cu(Ⅱ)双金属配合物的合成及磁性研究. 高等学校化学学报, 2010, 31(2): 215.

CUI Ai-Li, NI Wei-Wei, KOU Hui-Zhong*. Synthesis and Magnetic Property of Cyanide-bridged Fe(Ⅲ)-Cu(Ⅱ) Complexes. Chem. J. Chinese Universities, 2010, 31(2): 215.

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