Gold(I) Chloride Complexes with 4-Halo-Substituted Phenyl Isocyanide Ligands

IF 1.1 3区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Coordination Chemistry Pub Date : 2024-05-08 DOI:10.1134/S1070328423600596

G. A. Gavrilov, K. N. Davletbaeva, M. A. Kinzhalov

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Abstract

A series of gold(I) monoisocyanide [AuCl(CNC₆H₄-4-X)] (X = Cl (IIa), Br (IIb), I (IIc) and bis-isocyanide [Au(CNC₆H₄-4-X)₂](PF₆) (X = Cl (IIIa), Br (IIIb), I (IIIc) complexes were prepared by the reaction of [AuCl(Tht)] (Tht = tetrahydrothiophene) with the specified isocyanide. The molecular structure of IIa–IIc was established by X-ray diffraction (CCDC no. 2253450 (IIa), 2253447 (IIb), 2253448 (IIc)). The crystals of IIb and IIc are isostructural; they were found to have several types of intermolecular interactions, particularly, C–X⋯Cl–Au halogen bonds, π-hole (C_CNR)···\(~{{d}_{{{{z}^{2}}}}}\)(Au) interactions, and Au⋯Au aurophilic contacts, which form together a two-layer 2D supramolecular polymer. The crystals of IIb, IIc and IIIa, IIIb exhibit phosphorescence at room temperature; compounds IIa and IIIc do not possess luminescent properties; and mechanical grinding of IIa‒IIc and IIIa‒IIIc powders does not change the photophysical properties.

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具有 4-卤代苯基异氰酸配体的氯化金(I)配合物

摘要通过[AuCl(Tht)]（Tht = 四氢噻吩）与指定的异氰酸酯反应，制备了一系列金（I）单异氰酸酯[AuCl(CNC6H4-4-X)]（X = Cl (IIa)、Br (IIb)、I (IIc)）和双异氰酸酯[Au(CNC6H4-4-X)2](PF6)（X = Cl (IIIa)、Br (IIIb)、I (IIIc)）配合物。通过 X 射线衍射确定了 IIa-IIc 的分子结构（CCDC 编号：2253450 (IIa)、2253447 (IIb)、2253448 (IIc)）。发现 IIb 和 IIc 的晶体具有多种分子间相互作用，特别是 C-X⋯Cl-Au 卤素键、π-孔 (CCNR)---(~{{d}_{{{{z}^{2}}}}}\)(Au) 相互作用和 Au⋯Au 亲水接触，共同形成了双层二维超分子聚合物。IIb、IIc和IIIa、IIIb的晶体在室温下显示磷光；IIa和IIIc化合物不具有发光特性；对IIa-IIc和IIIa-IIIc粉末进行机械研磨不会改变其光物理性质。

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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.