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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >A one-dimensional silver(I) coordination polymer based on 5-methyl-1,3,4-thiadiazol-2-amine and pyridine-2,3-dicarboxylate
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A one-dimensional silver(I) coordination polymer based on 5-methyl-1,3,4-thiadiazol-2-amine and pyridine-2,3-dicarboxylate

机译:基于5-甲基-1,3,4-噻二唑-2-胺和吡啶-2,3-二羧酸盐的一维银(I)配位聚合物

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摘要

The bifunctional pyridine-2,3-dicarboxylic acid (H_2pdc) ligand has one N atom and four O atoms, which could bind more than one Ag~I centre with diverse binding modes. A novel infinite one-dimensional Ag~I coordination polymer, namely catma-poly[[silver(I)-(mu_2-pyridine-2,3-dicarboxylato-kappa~2N:O~3)-silver(I)-tris(mu_2-5-methyl-1,3,4-thiodiazol-2-amine-kappa~2 N:N')] monohydrate ethanol mono-solvate], {[Ag_2(C_7H_3NO_4)(C_3H_5N_3S)_3]·H_2O·C_2H_5OH}_n, has been synthesized using H2pdc and 5-methyl-1,3,4-thiadiazol-2-amine (tda), and characterized by single-crystal X-ray diffraction. One Ag~I atom is located in a four-coordinated AgN_4 tetrahedral geometry and the other Ag~I atom is in a tetrahedral AgN_3O geometry. A dinuclear Ag~I cluster formed by three tda ligands with a paddelwheel configuration is bridged by the dianionic pdc~2- ligand into a one-dimensional coordination polymer. Interchain N-H ??? O hydrogen bonds extend the one-dimensional chains into an undulating two-dimensional sheet. The sheets are further packed into a three-dimensional supramolecular framework by interchain N-H ??? O hydrogen bonds.
机译:双官能吡啶-2,3-二羧酸(H_2PDC)配体具有一种N原子和四个O原子,其可以以多种粘合模式结合多于一个Ag〜I中心。一种新型无限一维AG〜I配位聚合物,即鲶鱼 - 聚[[银(I) - (mu_2-吡啶-2,3-二羧酸甲基-Kappa〜2N:O〜3)-Silver(i) - mu_2-5-甲基-1,3,4-硫二唑-2-胺-κ〜2n:n')]一水合物乙醇单溶剂化物],{[ag_2(c_7h_3no_4)(c_3h_5n_3s)_3]·h_2o·c_2h_5oh}已经使用H 2Pdc和5-甲基-1,3,4-噻二唑-2-胺(TDA)合成了合成的,并通过单晶X射线衍射来表征。一个AG〜I原子位于四个协调的AGN_4四面体几何形状,另一AG〜I原子处于四面体AGN_3O几何形状。由带有划线轮型构造的三个TDA配体形成的二核AG〜I簇由Dianionic PDC〜2-配体桥接到一维配位聚合物中。中间n-h ??? o氢键将一维链延伸到起伏的二维片中。通过Interchain N-H进一步填充到三维超分子框架中??? o氢键。

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