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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Copper(ii) 5-methoxyisophthalate coordination polymers incorporatingdipyridyl co-ligands: syntheses, crystal structures, and magnetic propertiest
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Copper(ii) 5-methoxyisophthalate coordination polymers incorporatingdipyridyl co-ligands: syntheses, crystal structures, and magnetic propertiest

机译:结合了二​​吡啶基共配体的5-甲氧基间苯二甲酸铜(ii)配位聚合物:合成,晶体结构和磁性

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摘要

Hydrothermal reactions of mixed ligands 5-methoxyisophthalate (CH_3O-H_2ip) and dipyridyl withCu(OAc)_2.2H_2Oafford five new coordination polymers, including {[Cu(CH_3O-ip)(bpa)]H_2O}_n(1),[Cu_2(CH_3O-iP)_2(bPa)_(0.5)(H_2O)]n (2), [Cu_2(CH_3O-iP)_2(bPP)(H_2O)]_n (3), {[Cu_3(CH_3O-iP)_3(bPP)_2(H_2O)]3H_2O}_n(4)and [Cu_4(CH_3O-ip)_3(bpe)(OH)_2]_n(5)(bpp =1,3-di(4-pyridyl)propane, bpa =1,2-bi(4-pyridyl)ethane, and bpe = 1,2-di(4-pyridyl)ethylene). Compound 1 consists of CH3O-ipanion-bridged 1D Cu_(II) chains that are linked bytrans-bpainto a 2D layer. Compound 2 is a 2D (4,4)layer that is connected by CH_3O-ip anions. Thegauchebpa in 2 lies in the cavity and meets thecoordination requirement of the paddle-wheel dimeric copper unit. Compound 3 is an extended 3Dpolythreading network consisting of 2D (4,4) motifs with dangling bpp lateral arms. Compound 4exhibits a 3D (4,6)-connected self-penetrating (6~5.8)(6~(14).8) network that is composed of binuclear andmononuclear metal nodes. Compound 5 exhibits a 3D network with the tetranuclear [Cu_4(μ_3-OH)_2]~(6+)cluster acting as nodes, which is constructed by the interconnection of 2D helical layers via bpe pillars.The results of magnetic determination show that the syn-anti carboxylato bridges in our cases induce aweak antiferromagnetic interaction in 1, and the syn-syn carboxylato bridge in 3 and 4 mediates astrong antiferromagnetic interaction.
机译:混合配体5-甲氧基间苯二甲酸(CH_3O-H_2ip)和二吡啶基与Cu(OAc)_2.2H_2Oafford的五个新配位聚合物的水热反应,包括{[Cu(CH_3O-ip)(bpa)] H_2O} _n(1),[Cu_2( CH_3O-iP)_2(bPa)_(0.5)(H_2O)] n(2),[Cu_2(CH_3O-iP)_2(bPP)(H_2O)] _ n(3),{[Cu_3(CH_3O-iP)_3 (bPP)_2(H_2O)] 3H_2O} _n(4)和[Cu_4(CH_3O-ip)_3(bpe)(OH)_2] _n(5)(bpp = 1,3-di(4-pyridyl)propane, bpa = 1,2-二(4-吡啶基)乙烷,bpe = 1,2-二(4-吡啶基)乙烯)。化合物1由CH3O-阴离子桥连的1D Cu_(II)链组成,这些链通过反式连接到2D层。化合物2是2D(4,4)层,通过CH_3O-ip阴离子连接。 2中的gauchebpa位于空腔中,满足桨轮二聚体铜单元的配合要求。化合物3是一个扩展的3D多线程网络,由带有悬垂的bpp侧臂的2D(4,4)图案组成。化合物4展示了一个由双核和单核金属节点组成的3D(4,6)连接的自穿透(6〜5.8)(6〜(14).8)网络。化合物5表现出由四核[Cu_4(μ_3-OH)_2]〜(6+)簇为节点的3D网络,该网络由2D螺旋层通过bpe柱相互连接而构成。磁性测定结果表明,在我们的案例中,顺-反羧基桥在1中引起弱的反铁磁相互作用,而在3和4中的顺-羧基桥在介导强的反铁磁相互作用。

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