A linear tetranuclear Ni(II) acyl hydrazone Schiff base complex: preparation, crystal structure and catalytic application

IF 1.6 4区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Transition Metal Chemistry Pub Date : 2022-10-18 DOI:10.1007/s11243-022-00501-y

Li Wang, Jindi Wu, Xiaolong Su, Jian Huang, Peng Zhang, Saidi Zhao, Biyun Su, Benhua Xu

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Abstract

A novel linear tetranuclear Ni(II) complex Ni₄L₂ {[Ni₄L₂(H₂O)₃CH₃OH]·CH₃OH·2CH₃CN·2H₂O} was constructed by employing a well-tailored compartmental ligand H₄L = (2E,N'E)-N'-(1-(3-((E)-2-hydroxy-3-methoxybenzylideneamino)-2-hydroxyphenyl)ethylidene)-2 -(hydroxyimino)propanehydrazideas with equal equivalent NiCl₂·6H₂O and NaOH via solvothermal reaction. The complex was well characterized by X-ray crystallography, elemental analysis, infrared emission spectra, UV–visible absorption spectra and thermogravimetry. The crystal structure shows that four nickel ions coordinate with two ligands to form a unique linear structure of Ni₄L₂. Besides, Ni₄L₂ act as a catalyst showed good catalytic activity for polymerization of methyl methacrylate (MMA) to obtain PMMA under mild condition.

Graphical abstract

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线性四核Ni(II)酰基腙希夫碱配合物的制备、晶体结构及催化应用

摘要采用与NiCl2·6H2O和NaOH等当量的配体H4L = (2E,N'E)-N'-(1-(3-(E)-2-羟基-3-甲氧基苄基氨基)-2-羟基苯基乙基)丙烷肼为配体，通过溶剂热反应，构建了新型线性四核Ni(II)配合物Ni4L2 {[Ni4L2(H2O)3CH3OH]·CH3OH·2CH3CN·2H2O}。通过x射线晶体学、元素分析、红外发射光谱、紫外可见吸收光谱和热重分析对配合物进行了表征。晶体结构表明，四个镍离子与两个配体配位形成独特的线性结构。此外，Ni4L2作为催化剂对甲基丙烯酸甲酯(MMA)在温和条件下聚合得到PMMA具有良好的催化活性。图形抽象

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来源期刊

Transition Metal Chemistry 化学-无机化学与核化学

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

1.3 months

期刊介绍： Transition Metal Chemistry is an international journal designed to deal with all aspects of the subject embodied in the title: the preparation of transition metal-based molecular compounds of all kinds (including complexes of the Group 12 elements), their structural, physical, kinetic, catalytic and biological properties, their use in chemical synthesis as well as their application in the widest context, their role in naturally occurring systems etc. Manuscripts submitted to the journal should be of broad appeal to the readership and for this reason, papers which are confined to more specialised studies such as the measurement of solution phase equilibria or thermal decomposition studies, or papers which include extensive material on f-block elements, or papers dealing with non-molecular materials, will not normally be considered for publication. Work describing new ligands or coordination geometries must provide sufficient evidence for the confident assignment of structural formulae; this will usually take the form of one or more X-ray crystal structures.