首页> 美国卫生研究院文献>Acta Crystallographica Section E: Crystallographic Communications >Crystal structures of {μ2-NN′-bis­(pyridin-3-yl)meth­ylethanedi­amide}tetra­kis­(di­methyl­carbamodi­thio­ato)dizinc(II) di­methyl­formamide disolvate and {μ2-NN′-bis­(pyridin-3-yl)meth­ylethanedi­amide}tetra­kis­(di-n-propyl­carbamodi­thio­ato)dizinc(II)
【2h】

Crystal structures of {μ2-NN′-bis­(pyridin-3-yl)meth­ylethanedi­amide}tetra­kis­(di­methyl­carbamodi­thio­ato)dizinc(II) di­methyl­formamide disolvate and {μ2-NN′-bis­(pyridin-3-yl)meth­ylethanedi­amide}tetra­kis­(di-n-propyl­carbamodi­thio­ato)dizinc(II)

机译:{μ2-NN-双(吡啶-3-基)甲基乙二酰胺}四(二甲基氨基甲硫代氨基)二嗪(II)二甲基甲酰胺的晶体结构和{μ2-NN-双(吡啶-3- (基)甲基乙二酰胺}四(二正丙基氨基甲酸二硫代氨基)二嗪(II)

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摘要

The title structures, [Zn2(C3H6NS2)4(C14H14N4O2)]·2C3H7NO (I) and [Zn2(C7H14NS2)4(C14H14N4O2)] (II), each feature a bidentate, bridging bipyridyl-type ligand encompassing a di-amide group. In (I), the binuclear compound is disposed about a centre of inversion, leading to an open conformation, while in (II), the complete mol­ecule is completed by the application of a twofold axis of symmetry so that the bridging ligand has a U-shape. In each of (I) and (II), the di­thio­carbamate ligands are chelating with varying degrees of symmetry, so the zinc atom is within an NS4 set approximating a square-pyramid for (I) and a trigonal-bipyramid for (II). The solvent di­methyl­formaide (DMF) mol­ecules in (I) connect to the bridging ligand via amide-N—H⋯O(DMF) and various amide-, DMF-C—H⋯O(amide, DMF) inter­actions. The resultant three-mol­ecule aggregates assemble into a three-dimensional architecture via C—H⋯π(pyridyl, chelate ring) inter­actions. In (II), undulating tapes sustained by amide-N—H⋯O(amide) hydrogen bonding lead to linear supra­molecular chains with alternating mol­ecules lying to either side of the tape; no further directional inter­actions are noted in the crystal.
机译:标题结构[Zn2(C3H6NS2)4(C14H14N4O2)]·2C3H7NO(I)和[Zn2(C7H14NS2)4(C 14 H 14 N 4 O 2 )](II),每个均具有双齿,桥联双吡啶基型配体,该配体包含二酰胺基。在(I)中,双核化合物位于反转中心附近,从而导致开放构象,而在(II)中,完整分子通过应用双重对称轴完成,因此桥联配体具有U -形状。在(I)和(II)的每一个中,二硫代氨基甲酸酯配体以不同的对称度螯合,因此锌原子在NS 4 组内,近似于(I)和(A)的方锥。 (II)的三角双锥体。 (I)中的溶剂二甲基甲酰胺(DMF)分子通过酰胺-NH = O(DMF)和各种酰胺-,DMF-CH = O(酰胺,DMF)相互作用与桥连配体连接。所得的三分子聚集体通过CH-π(吡啶基,螯合环)相互作用组装成三维结构。在(Ⅱ)中,由酰胺-NH-OH(酰胺)氢键维持的起伏的带导致线性的超分子链,交替的分子位于带的两侧。晶体中没有发现其他定向相互作用。

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