D. R. Pashnin, D. P. Shevchenko, V. V. Sharutin, O. K. Sharutina
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引用次数: 0
摘要
摘要二氰基精氨酸钾水溶液与氯化镍(II)或氯化铜(II)和乙二胺或 4、二氰基精氨酸钾水溶液与氯化镍（II）或氯化铜（II）和乙二胺或 4，4'-联吡啶的混合物在乙醇中的反应得到配位聚合物 [Ni(Еn)2(Ag(CN)2)][Ag(CN)2] (I)，[Cu(Еn)2(Ag(CN)2)][Ag(CN)2](II)和 [Cu(4,4'-Вipy)2(Ag(CN)2)2](III)。2225984 (I)、2214320 (II) 和 2229270 (III)）和红外光谱进行表征。根据 XRD 数据，复合物 I 和 II 的晶体由 1D 链 {--NC-Ag-CN-M(Еn)2--}n（M = Ni (I)，Cu (II)）形成，这些链由二氰基精氨酸阴离子通过亲精接触相互连接（Ag--Ag 3.288(8) Å (I)，3.1616(14) Å (II)）。化合物 III 的晶体由聚合物层 {Cu[Ag(CN)2]2}n 组成，这些聚合物层通过 4,4'-联吡啶分子相互结合，形成独立的相互渗透的三维网络。联吡啶连结物将[Ag(CN)2]-阴离子的铜中心与银中心连接起来，从而提供了银原子的三叉配位。在复合物 III 的晶体中没有观察到银与银之间的相互作用。
Nickel(II) and Copper(II) Dicyanoargentate Complexes with Ethylenediamine and 4,4'-Bipyridyl Ligands
The reactions of an aqueous solution of potassium dicyanoargentate with a mixture of nickel(II) or copper(II) chloride and ethylenediamine or 4,4'-bipyridyl in ethanol afford coordination polymers [Ni(Еn)2(Ag(CN)2)][Ag(CN)2] (I), [Cu(Еn)2(Ag(CN)2)][Ag(CN)2] (II), and [Cu(4,4'-Вipy)2(Ag(CN)2)2] (III) characterized by XRD (CIF files CCDC nos. 2225984 (I), 2214320 (II), and 2229270 (III)) and IR spectroscopy. According to the XRD data, the crystals of complexes I and II are formed by 1D chains {··NC–Ag–CN–M(Еn)2··}n (M = Ni (I), Cu (II)) linked with each other by the dicyanoargentate anions via argentophilic contacts (Ag···Ag 3.288(8) Å (I), 3.1616(14) Å (II)). The crystal of compound III consists of independent interpenetrating 3D networks built of polymer layers {Cu[Ag(CN)2]2}n bound to each other by the 4,4'-bipyridyl molecules. The bipyridyl linkers connect the Cu centers with the Ag centers of the [Ag(CN)2]– anions thus providing the tridentate coordination of the silver atoms. No Ag···Ag interactions are observed in the crystal of complex III.
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Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
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