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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >cyanide-Bridged Tetranuclear (RE2Fe2III)-Fe-III (RE = Y, Tb, Dy) Molecular Squares with 2,2 ':6 ',2 ''-Terpyridine as a capping Ligand
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cyanide-Bridged Tetranuclear (RE2Fe2III)-Fe-III (RE = Y, Tb, Dy) Molecular Squares with 2,2 ':6 ',2 ''-Terpyridine as a capping Ligand

机译:氰化物桥连的四核(RE2Fe2III)-Fe-III(RE = Y,Tb,Dy)分子正方形,带有2,2':6',2'-三联吡啶作为封端配体

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摘要

Self-assembly reaction between hydrated lure-earth (RE) nitrates RE,(NO3)(3)center dot 6H(2)O with K3Fe(CN)(6) in H2O/DMF solution by employing the tridentate ligand 2,2':6',2"-terpyridine (terpy) as a capping ligand has yielded three cyanide-bridged compounds [RE(terpy)(DMF)(H2O)(2)]Fe(CN)(6)]center dot 6H(2)O [RE = Y (1), Tb (2), Dy (3)]. FT-IR spectra confirmed the presence of terpy ligands and cyanide. groups in compounds 1-3. Single-crystal X-ray structural analysis indicated that these compounds are isomorphous and adopt neutral [RE2Fe2] molecular squares, which are further linked through hydrogen bonding interactions to generate a three-dimensional supramolecular network. Magnetic susceptibility measurements revealed that significant- single ion magnetic anisotropy dominates the properties of these compounds.
机译:通过使用三齿配体2,2'在H2O / DMF溶液中水合诱饵硝酸(RE)硝酸盐RE,(NO3)(3)中心点6H(2)O与K3Fe(CN)(6)之间的自组装反应:6',2“-吡啶(封端)作为封端配体产生了三种氰化物桥接的化合物[RE(terpy)(DMF)(H2O)(2)] Fe(CN)(6)]中心点6H(2 O [RE = Y(1),Tb(2),Dy(3)]。FT-IR光谱证实了化合物1-3中存在叔配体和氰基。单晶X射线结构分析表明这些化合物是同构的,并采用中性[RE2Fe2]分子方格,它们通过氢键相互作用进一步连接以生成三维超分子网络,磁化率测量表明,显着的单离子磁各向异性主导了这些化合物的性能。

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