Nickel(II) and Copper(II) Dicyanoargentate Complexes with Ethylenediamine and 4,4'-Bipyridyl Ligands

IF 1.1 3区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI:10.1134/S1070328423601589

D. R. Pashnin, D. P. Shevchenko, V. V. Sharutin, O. K. Sharutina

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Abstract

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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乙二胺和 4,4'-联吡啶配体的二氰基精氨酸镍（II）和铜（II）络合物

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。

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来源期刊

Russian Journal of Coordination Chemistry 化学-无机化学与核化学

CiteScore

2.40

自引率

15.80%

发文量

审稿时长

7.2 months

期刊介绍： Russian Journal of Coordination Chemistry is a journal that publishes reviews, original papers, and short communications on all aspects of theoretical and experimental coordination chemistry. Modern coordination chemistry is an interdisciplinary science that makes a bridge between inorganic, organic, physical, analytical, and biological chemistry.