氰根桥联FeⅢ-CuⅡ一维配合物{[Fe(1-CH3im)(CN)4(μ-CN)Cu(cyclam)]·H2O}n的合成、结构及磁性研究

引用本文: 苗保喜, 李国玲, 赵云, 倪中海. 氰根桥联Fe^Ⅲ-Cu^Ⅱ一维配合物{[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n的合成、结构及磁性研究[J]. 无机化学学报, 2013, 29(11): 2470-2474. doi: 10.3969/j.issn.1001-4861.2013.00.322 shu

Citation: MIAO Bao-Xi, LI Guo-Ling, ZHAO Yun, NI Zhong-Hai. Synthesis, Crystal Structure and Magnetic Properties of a One-Dimensional Cyanide-Bridged Fe^Ⅲ-Cu^Ⅱ Complex {[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(11): 2470-2474. doi: 10.3969/j.issn.1001-4861.2013.00.322 shu

氰根桥联Fe^Ⅲ-Cu^Ⅱ一维配合物{[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n的合成、结构及磁性研究

基金项目:
江苏省创新团队和中央高校基本科研业务费专项资金(No.2013XK05)资助项目。 (No.2013XK05)

摘要: 基于构筑单元K₂[Fe(1-CH₃im)(CN)₅]和[Cu(cyclam)](ClO₄)₂,合成了一个氰根桥联Fe^Ⅲ-Cu^Ⅱ中性一维化合物{[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n(1-CH₃im=1-甲基咪唑;cyclam=1,4,8,11-四氮杂环十四烷)(1),并通过X-射线单晶分析表征其结构特征。结果表明:化合物(1)是由氰根桥联的杂金属组成的聚合物,其结构属于三斜晶系,P1空间群,a=0.83256(17)nm,b=0.89938(18)nm,c=0.9983(2)nm,α=111.94(3)°,β=95.06(3)°,γ=116.90(3)°,V=0.5877(2)nm³,Z=1,D_c=1.554g·cm^-3,μ=1.558mm^-1,F(000)=286,R₁=0.0519,wR₂=0.1353。磁性研究表明:配合物1中Cu^Ⅱ和低自旋的Fe^Ⅲ离子之间存在弱的铁磁耦合作用。

关键词:

氰根桥联;晶体结构;磁性;杂金属

English

Synthesis, Crystal Structure and Magnetic Properties of a One-Dimensional Cyanide-Bridged Fe^Ⅲ-Cu^Ⅱ Complex {[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n

1.
School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
Received Date: 03 January 2013
Fund Project:
江苏省创新团队和中央高校基本科研业务费专项资金(No.2013XK05)资助项目。

Abstract: Anew one-dimensional cyanide-bridged Fe^Ⅲ-Cu^Ⅱ complex {[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n (1-CH₃im=1-methylimidazole, cyclam=1,4,8,11-tetraazacyclotetradecane) (1) has been synthesized by the reaction of [Cu(cyclam)](ClO₄)₂ and a pentacyanideferrite building blocks K₂[Fe(1-CH₃im)(CN)₅]. Single crystal X-ray diffraction analysis reveals the structure of complex 1 is polymer type with two different metal centers which is alternated linked by cyanide group from the [Fe(1-CH₃im)(CN)₅]^2- building blocks. Complex 1 (C₁₉H₃₂CuFeN₁₁O, M_r=549.95) crystallizes in triclinic space group P1 with a=0.83256(17) nm, b=0.89938(18) nm, c=0.9983(2) nm, α=111.94(3)°, β=95.06(3)°, γ=116.90(3)°, V=0.5877(2) nm³, Z=1, D_c=1.554 g·cm^-3, μ=1.558 mm^-1, F(000)=286, the final R₁0.0519 and wR₂=0.1353. Magnetic investigations show that complex 1 exhibits a weak ferromagnetic coupling between Cu^Ⅱ and low-spin Fe^Ⅲ through the cyanide bridge. CCDC: 908099.

Key words:

cyanide-bridged;crystal structure;magnetic property;heterometalllic

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氰根桥联Fe^Ⅲ-Cu^Ⅱ一维配合物{[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n的合成、结构及磁性研究

English

Synthesis, Crystal Structure and Magnetic Properties of a One-Dimensional Cyanide-Bridged Fe^Ⅲ-Cu^Ⅱ Complex {[Fe(1-CH₃im)(CN)₄(μ-CN)Cu(cyclam)]·H₂O}_n

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