Electrochemical behavior of a nickel(ii) complex with an N-heterocyclic carbene bisphenolate pincer ligand

IF 1.7 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Russian Chemical Bulletin Pub Date : 2025-01-14 DOI:10.1007/s11172-024-4441-1
Z. N. Gafurov, I. K. Mikhailov, A. A. Kagilev, I. F. Sakhapov, A. O. Kantyukov, V. I. Morozov, D. A. Kulikov, E. M. Zueva, A. B. Dobrynin, A. A. Trifonov, D. G. Yakhvarov
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Abstract

The electrochemical behavior of the N-heterocyclic carbene bisphenolate complex of nickel(ii) Ni(L)Py (L – 1,3-bis(3,5-di-tert-butyl-2-phenolato)-5,5-dimethyl-(4,6-dihydropyrimidin-2-ylidene)) was studied using cyclic voltammetry and EPR spectroelectrochemistry. According to the obtained experimental data supplemented by quantum chemical calculations, the electrochemical properties of this complex differ significantly from those of its benzimidazolylidene and imidazolylidene analogs. The oxidation of the Ni(L)Py complex is a ligand-centered process, and the phenoxyl radical group formed is susceptible to decoordination and interaction with the NHC-fragment of the complex to form benzoxazole, the crystal structure of which was determined by X-ray diffraction.

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镍(ii)配合物与n -杂环碳双酚酸钳子配体的电化学行为
采用循环伏安法和EPR光谱电化学研究了镍(ii) Ni(L)Py (L - 1,3-二(3,5-二叔丁基-2-苯酚)-5,5-二甲基-(4,6-二氢嘧啶-2-乙基))n-杂环卡宾双酚酸配合物的电化学行为。根据得到的实验数据并辅以量子化学计算,该配合物的电化学性能与其苯并咪唑偶氮和咪唑偶氮类似物的电化学性能有显著差异。Ni(L)Py配合物的氧化是一个以配体为中心的过程,形成的苯氧基很容易与配合物的nhc片段配位相互作用形成苯并恶唑,通过x射线衍射测定了其晶体结构。
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来源期刊
Russian Chemical Bulletin
Russian Chemical Bulletin 化学-化学综合
CiteScore
2.70
自引率
47.10%
发文量
257
审稿时长
3-8 weeks
期刊介绍: Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections: General and Inorganic Chemistry; Physical Chemistry; Organic Chemistry; Organometallic Chemistry; Chemistry of Natural Compounds and Bioorganic Chemistry.
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