氰基桥联的Fe(Ⅲ)-Mn(Ⅱ)双金属链的可控组装和磁性作用的调控（英文）

Tuning Assembly and Magnetic Interactions of Cyano-bridged Fe(Ⅲ)-Mn(Ⅱ)Bimetallic Chains

基于不同位阻的三氰基构筑单元和双齿配体,合成了2个氰基桥联的Fe(Ⅲ)-Mn(Ⅱ)链状化合物。利用不同的结构扭曲类型调控了它们的磁性相互作用。化合物{[Fe(Ⅲ)(Pz Tp)(CN)3][Mn(Ⅱ)(5,5′-dmbpy)2]Cl O4}n(1;Pz Tp=tetrakis(pyrazolyl)borate;5,5′-dmbpy=5,5′-dimethyl-2,2′-bipyridine)显示为左右手螺旋链的一维2,2-CC链状结构并且表现出亚铁磁行为。化合物{[Fe(Ⅲ)(Tp*)(CN)3]2[Mn(Ⅱ)(dpqc)]·CH3OH·H2O}n(2;Tp*=hydridotris(3,5-dimethylpyrazolyl)borate;dpqc=dipyrido[3,2-a:2′,3′-c]-(6,7,8,9-tetrahydro)phenazine)具有一维4,2-带状的双链结构并且表现出典型的反铁磁性相互作用。

Two cyano-bridged Fe（Ⅲ）-Mn（Ⅱ） chains were synthesized via using bidentate ligands and cyanometallate building blocks with different steric hindrance.The magnetic interactions were adjusted by the structural distortions of the two compounds.Compound {[Fe （Ⅲ）（Pz Tp）（CN）3] [Mn （Ⅱ）（5,5′-dmbpy）2]Cl O4}n（1;Pz Tp =tetrakis（pyrazolyl）borate;5,5′-dmbpy=5,5′-dimethyl-2,2′-bipyridine） shows a 1D 2,2-CC chain-like structure with a leftand right-handed helices chains and exhibits the ferrimagnetic behavior.Compound {[Fe （Ⅲ）（Tp＊）（CN）3]2[Mn（Ⅱ）（dpqc）]·CH3OH·H2O}n（2;Tp＊=hydridotris（3,5-dimethylpyrazolyl）borate;dpqc=dipyrido[3,2-a：2′,3′-c]-（6,7,8,9-tetrahydro）phenazine） has a novel 1D 4,2-ribbon double chain-like structure with dominant antiferromagnetic interactions.