首页> 外文期刊>RSC Advances >Three new metal coordination polymers of bifunctional imidazolate/tetrazolate bridges: the only example of a three-dimensional framework based on rare [Co4(μ3-OH)2(μ2-Cl)2]4+ mixed oxo-chloro-clusters
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Three new metal coordination polymers of bifunctional imidazolate/tetrazolate bridges: the only example of a three-dimensional framework based on rare [Co4(μ3-OH)2(μ2-Cl)2]4+ mixed oxo-chloro-clusters

机译:三种新型的双功能咪唑基/四唑基桥金属配位聚合物:唯一基于稀有[Co4(μ3-OH)2(μ2-Cl)2] 4+混合氧-氯-簇的三维骨架的例子

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Three new metal coordination polymers [Ni(μ _(2) -L) _(2) (H _(2) O) _(2) ] _( n ) ( 1 , HL = 1-tetrazole-4-imidazole-benzene ), [Co(μ _(2) -L) _(2) ] _( n ) ( 2 ), and [Co _(4) (μ _(3) -OH) _(2) (μ _(2) -Cl) _(2) (μ _(5) -L) _(2) (μ _(2) -L) _(2) ] _( n ) ·7 n H _(2) O ( 3 ) were hydrothermally synthesized and structurally characterized. 1 displays a neutral [Ni(μ _(2) -L) _(2) (H _(2) O) _(2) ] _( n ) chain built up from the Ni ~(2+) ions bridged by deprotonated L ~(?) ligands, while 2 shows another rare neutral [Co(μ _(2) -L) _(2) ] _( n ) chain based on Co ~(2+) ions connected by two different coordination modes of the L ~(?) ligand. 3 exhibits a rare [Co _(4) (μ _(3) -OH) _(2) (μ _(2) -Cl) _(2) ] ~(4+) mixed oxo-chloro-cluster-based three-dimensional framework with large elliptical channels, which are filled by unprecedented chilopod [(H _(2) O) _(7) ] _( n ) chains. Both 1 and 2 show antiferromagnetic behavior, while 3 exhibits unusual spin-canting.
机译:三种新型金属配位聚合物[Ni(μ_(2)-L)_(2)(H _(2)O)_(2)] _(n)(1,HL = 1-四唑-4-咪唑-苯),[Co(μ_(2)-L)_(2)] _(n)(2)和[Co _(4)(μ_(3)-OH)_(2)(μ_ (2)-Cl)_(2)(μ_(5)-L)_(2)(μ_(2)-L)_(2)] _(n)·7 n H _(2)O (3)水热合成并进行结构表征。 1显示中性[Ni(μ_(2)-L)_(2)(H _(2)O)_(2)] _(n)链,该链是由Ni〜(2+)离子桥接而成去除了质子化的L〜(?)配体,而2显示了另一种罕见的中性[Co(μ_(2)-L)_(2)] _(n)链,基于两个不同配位模式连接的Co〜(2+)离子L〜(α)配体的基团。 3表现出罕见的[Co _(4)(μ_(3)-OH)_(2)(μ_(2)-Cl)_(2)]〜(4+)具有大椭圆通道的三维框架,由空前的脚足类[(H _(2)O)_(7)] _(n)链填充。 1和2都显示反铁磁行为,而3则显示异常的自旋倾斜。

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