Heteronuclear cadmium(II)/cobalt(III) cyanide coordination polymers with 1-methylimidazole and 1-ethylimidazole ligands: synthesis, characterization and catalytic activities

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Inorganica Chimica Acta Pub Date : 2024-10-02 DOI:10.1016/j.ica.2024.122400

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Abstract

Two new heteronuclear Cd(II)/Co(III) compounds, {[Cd(1-meim)₃Cd_0.5(1-meim)Co(μ-CN)₄(CN)₂]}_n (1) and {[Cd(1-etim)₃Cd_0.5(1-etim)₂Co(μ-CN)₃(CN)₃]⋅H₂O}_n (2) (1-meim: 1-methylimidazole, 1-etim = 1-ethylimidazole), have been synthesized and characterized using elemental analysis, FT-IR and Raman spectroscopy, single-crystal X-ray diffraction techniques. The single crystal X-ray study shows that the compound 1 exhibited a 1D double chain structure and is further linked into 3D supramolecular architectures through CH⋅⋅⋅N and π⋅⋅⋅π interactions. Whereas the compound 2 displayed 2D network which is extended into a 3D supramolecular framework by OH⋅⋅⋅N hydrogen bonds and CH∙∙∙π interactions. In 1 and 2, each Co(III) ion is coordinated by six carbon atoms from cyanide ligands, thus showing an octahedral coordination geometry. Cd1 and Cd2 ions exhibited two different geometries, distorted trigonal bipyramidal and octahedral. Furthermore, phase purities, catalytic and thermal properties were investigated.

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具有 1-甲基咪唑和 1-乙基咪唑配体的异核氰化镉（II）/钴（III）配位聚合物：合成、表征和催化活性

两种新的异核镉(II)/钴(III)化合物，{[Cd(1-meim)3Cd0.5(1-meim)Co(μ-CN)4(CN)2]}n (1) 和 {[Cd(1-etim)3Cd0.5(1-etim)2Co(μ-CN)3(CN)3]⋅H2O}n（2）（1-meim：1-甲基咪唑，1-etim = 1-乙基咪唑）的合成，并利用元素分析、傅立叶变换红外光谱和拉曼光谱、单晶 X 射线衍射技术对其进行了表征。单晶 X 射线研究表明，化合物 1 呈一维双链结构，并通过 CH⋅⋅N 和 π⋅⋅π 相互作用进一步连接成三维超分子结构。而化合物 2 显示出二维网络，并通过 OH⋅⋅N 氢键和 CH∙∙∙π 相互作用扩展成三维超分子框架。在 1 和 2 中，每个 Co(III)离子都由来自氰化物配体的六个碳原子配位，因此呈现出八面体配位几何。Cd1 和 Cd2 离子则呈现出两种不同的几何形状，分别是畸变三叉双锥体和八面体。此外，还对相纯度、催化和热性能进行了研究。

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.