Abstract

Cyanide complexes are used as metalloligands to obtain multicore complexes with magnetic properties. Hexacyanides [W(CN)₆(L)]^1–/2– {L = 2,2′-bipyridine (bpy) or 1,10-phenanthroline (phen)} are the systems suitable for testing the magnetic coupling between W(V) and other paramagnetic centres. In this study, the synthesis of [W(CN)₆(bpy)]^2– with selected tetraalkylammonium cations (Et₄N⁺, Pr₄N⁺, and Bu₄N⁺) and the X-ray diffraction structural analysis of single crystals of three salts (Et₄N)₂[W(CN)₆(bpy)]·3H₂O, (Pr₄N)(PPh₄)[W(CN)₆(bpy)](CH₃)₂CO·H₂O, and (Bu₄N)₂[W(CN)₆(bpy)](CH₃)₂CO are described. The relationship between the cation type and the [W(CN)₆(bpy)]^2– ion packing system is discussed. Selected physicochemical properties as IR spectra and the elemental analysis of the complexes are also presented.

中文翻译：

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阴离子-阳离子与 Et4N+、Pr4N+ 和 Bu4N+ 阳离子盐与 [W(CN)6(bpy)]2- 阴离子结构中的弱分子间相互作用

摘要

氰化物配合物用作金属配体以获得具有磁性的多核配合物。六氰化物 [W(CN) ₆ (L)] ^1–/2– {L = 2,2'-联吡啶 (bpy) 或 1,10-菲咯啉 (phen)} 是适用于测试 W( V) 和其他顺磁中心。在本研究中，[W(CN) ₆ (bpy)] ^2–与选定的四烷基铵阳离子（Et ₄ N ⁺、Pr ₄ N ⁺和 Bu ₄ N ⁺）的合成以及单三种盐的晶体 (Et ₄ N) ₂ [W(CN) ₆(bpy)]·3H ₂ O、(Pr ₄ N)(PPh ₄ )[W(CN) ₆ (bpy)](CH ₃ ) ₂ CO·H ₂ O 和 (Bu ₄ N) ₂ [W(CN) ) ₆ (bpy)](CH ₃ ) ₂ CO进行描述。讨论了阳离子类型与 [W(CN) ₆ (bpy)] ^2-离子填充系统之间的关系。还介绍了选定的物理化学性质，如红外光谱和配合物的元素分析。