Acta Crystallographica Section E: Crystallographic Communications | |
Crystal structures of {μ2-N,N′-bis[(pyridin-3-yl)methyl]ethanediamide}tetrakis(dimethylcarbamodithioato)dizinc(II) dimethylformamide disolvate and {μ2-N,N′-bis[(pyridin-3-yl)methyl]ethanediamide}tetrakis(di-n-propylcarbamodithioato)dizinc(II) | |
Poplaukhin, P.1  Arman, H.D.2  Tiekink, E.R.T.3  | |
[1] Chemical Abstracts Service, 2540 Olentangy River Rd, Columbus, Ohio, 43202, USA;Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA;Research Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia | |
关键词: CRYSTAL STRUCTURE; ZINC; DITHIOCARBAMATE; DI-AMIDE; HYDROGEN BONDING; | |
DOI : 10.1107/S2056989017012956 | |
学科分类:数学(综合) | |
来源: International Union of Crystallography | |
【 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.
【 授权许可】
CC BY
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