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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >Two ZnII coordination complexes assembled by tri-thio-cyanuric acid and two different N-donor auxiliary ligands
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Two ZnII coordination complexes assembled by tri-thio-cyanuric acid and two different N-donor auxiliary ligands

机译：由三硫代氰尿酸和两个不同的N供体辅助配体组装的两个ZnII配位配合物

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摘要

The dipyridyl-type building blocks 4-amino-3,5-bis-(pyridin-3-yl)-1,2,4- triazole (3-bpt) and 4,4′-bi-pyridine (bpy) have been used to assemble with ZnII in the presence of tri-thio-cyanuric acid (ttcH3) to afford two coordination compounds, namely bis-[4-amino-3,5-bis-(pyridin-3-yl)-1,2,4- triazole-κN 3]bis-(trithio-cyanurato-κ2 N,S)zinc(II), [Zn(C3H2N3S3)2(C12H10N6)2]·2H2O, (1), and catena-poly[[[bis-(tri-thio-cyanurato-κ2 N,S)zinc(II)]-μ-4, 4′-bi-pyridine-κ2 N:N′] 4,4′-bi-pyridine mono-solvate], {[Zn2(C3H2N3S3)4(C10H8N2)3]·C10H8N2} n , (2). Single-crystal X-ray analysis indicates that complex (1) is a mononuclear structure, while complex (2) presents a one-dimensional chain coordination motif. In both complexes, the central ZnII cation adopts an octa-hedral geometry, coordinated by four N- and two S-donor atoms. Notably, tri-thio-cyanurate (ttcH2 -) adopts the same bidentate chelating coordination mode in each complex and exists in the thione tautomeric form. The 3-bpt co-ligand in (1) adopts a monodentate coordination mode and serves as a terminal pendant ligand, whereas the 4,4′-bi-pyridine (bpy) ligand in (2) adopts a bidentate-bridging coordination mode. The different coordination characters of the different N-donor auxiliary ligands lead to structural diversity for complexes (1) and (2). Further analysis indicates that the resultant three-dimensional supra-molecular networks for (1) and (2) arise through inter-molecular N - H?S and N - H?N hydrogen bonds. Both complexes have been further characterized by FT-IR spectroscopy and elemental analyses.
机译：二吡啶基类型的结构单元4-氨基-3,5-双-（吡啶-3-基）-1,2,4-三唑（3-bpt）和4,4'-联吡啶（bpy）用于在三硫氰尿酸（ttcH3）存在下与ZnII组装，得到两种配位化合物，即双-[4-氨基-3,5-双-（吡啶-3-基）-1,2- 4-三唑-κN3]双-（三硫代-氰尿嘧啶-κ2N，S）锌（II），[Zn（C3H2N3S3）2（C12H10N6）2]·2H2O，（1）和链多聚[[[bis -（三硫代氰尿嘧啶-κ2N，S）锌（II）]-μ-4，4'-联吡啶-κ2N：N'] 4,4'-联吡啶单溶剂合物]，{ [Zn 2（C 3 H 2 N 3 S 3）4（C 10 H 8 N 2）3]·C 10 H 8 N 2} n，（2）。单晶X射线分析表明，复合物（1）是单核结构，而复合物（2）呈现一维链配位基序。在这两种络合物中，中心的ZnII阳离子均采用八面体几何结构，并由四个N和两个S供体原子配位。值得注意的是，三硫代氰尿酸酯（ttcH2-）在每个复合物中采用相同的二齿螯合配位模式，并以硫酮互变异构形式存在。 （1）中的3-bpt共配体采用单齿配位模式并用作末端侧基配体，而（2）中的4,4'-联吡啶（bpy）配体采用二齿桥联配位模式。不同的N-供体辅助配体的不同配位特征导致复合物（1）和（2）的结构多样性。进一步的分析表明，所得的（1）和（2）的三维超分子网络是通过分子间的N-H 2 S和N-H 2 N氢键形成的。两种配合物都已通过FT-IR光谱和元素分析进一步表征。

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