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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Three complexes of manganese(II) based on a new semirigid tetracarboxylate and N-containing ligands: Synthesis, crystal structures and magnetic properties
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Three complexes of manganese(II) based on a new semirigid tetracarboxylate and N-containing ligands: Synthesis, crystal structures and magnetic properties

机译:基于新的半刚性四羧酸盐和含氮配体的锰(II)的三种配合物:合成,晶体结构和磁性

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Three manganese(II) coordination polymers, namely [Mn(L)(0.5)(bipy)(0.5)(H2O)](n) (1), [Mn-2(L)(1,4-bimb)(H2O)(2)](n), (2) and [Mn(L)(0.5)(4,4'-bibp)(0.5)(H2O)(2)](n) (3), where H4L = 5,5'-([1,1'-biphenyl]-4,4'-diyl-bis(oxy))diisophthalic acid, bipy = 4,4'-bipyridine, 1,4-bimb = 1,4-bis(imidazol-1-ylmethyl) benzene and 4,4'-bibp = 4,4'-di(1H-imidazol-1-yl)-1,1'-biphenyl, have been successfully constructed using the hydrothermal method. To understand these compounds completely, single crystal X-ray diffraction, IR, powder X-ray diffraction (PXRD) and thermogravimetric studies have been carried out. Complexes 1 and 2 possess three-dimensional (3D) pillared-layer frameworks, and 2-fold and 3-fold interpenetration take place in 1 and 2, respectively. In complex 3, 2D layers are linked by hydrogen bonds, resulting in a 3D supramolecular architecture. Meanwhile, the magnetic behaviors of complexes 1 and 2 have been investigated and weak antiferromagnetic interactions between two Mn(II) centres within the polymers have been revealed. (C) 2015 Elsevier Ltd. All rights reserved.
机译:三种锰(II)配位聚合物,即[Mn(L)(0.5)(bipy)(0.5)(H2O)](n)(1),[Mn-2(L)(1,4-bimb)(H2O )(2)](n),(2)和[Mn(L)(0.5)(4,4'-bibp)(0.5)(H2O)(2)](n)(3),其中H4L = 5 ,5'-([[1,1'-联苯] -4,4'-二基-双(氧基))二间苯二甲酸,Bipy = 4,4'-联吡啶,1,4-Bimb = 1,4-bis(使用水热法成功地构建了咪唑-1-基甲基)苯和4,4'-bibp = 4,4'-二(1H-咪唑-1-基)-1,1'-联苯。为了完全理解这些化合物,已进行了单晶X射线衍射,IR,粉末X射线衍射(PXRD)和热重分析。配合物1和2具有三维(3D)支柱层框架,并且2和3互穿分别发生在1和2中。在复合物3中,2D层通过氢键连接,形成3D超分子结构。同时,研究了配合物1和2的磁行为,并揭示了聚合物中两个Mn(II)中心之间的弱反铁磁相互作用。 (C)2015 Elsevier Ltd.保留所有权利。

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