Potassium, Ytterbium(II), and Samarium(III) Alkoxide Complexes Containing the Tris((2-dimethylaminomethyl)phenyl)methoxide Ligand: Synthesis and Structures

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-05-08 DOI:10.1134/S1070328423600961
A. N. Selikhov, G. R. Taranenko, Yu. V. Nelyubina, A. A. Trifonov
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Abstract

The reaction of tris((2-dimethylaminomethyl)phenyl)methanol ((2-Me2NCH2C6H4)3COH) with potassium hydride in THF at –35°C affords dimeric alkoxide {[(2-Me2NCH2C6H4)3CO]K(THF)}2 (I) in a yield of 90%. The reaction of compound I with YbI2(THF)2 (1 : 1, 25°C) gives the Yb(II) alkoxyiodide complex {[(2-Me2NCH2C6H4)3CO]Yb(μ-I)(THF)2}2 (II) in a yield of 57%. Complex II in the crystalline state is dimeric due to two bridging iodide ligands. Unlike the Yb(II) compound, the exchange reaction of complex I with SmI2(THF)2 (1 : 1, 25°C) in THF followed by the addition of dimethoxyethane (DME) involves the oxidation of the metal to form the trivalent samarium complex [(2-Me2NCH2C6H4)3CO]2SmI (III), which is isolated in a yield of 60%. The molecular structures of the complexes are determined by X-ray diffraction (XRD) (CIF files CCDC nos. 2259700 (I), 2259701 (II), and 2259702 (III)).

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含有三((2-二甲基氨基甲基)苯基)甲氧基配体的钾、镱(II)和钐(III)烷氧化物配合物:合成与结构
摘要三((2-二甲基氨基甲基)苯基)甲醇((2-Me2NCH2C6H4)3COH)与氢化钾在 THF 中于 -35°C 反应生成二聚烷氧基化合物 {[(2-Me2NCH2C6H4)3CO]K(THF)}2 (I),产率为 90%。化合物 I 与 YbI2(THF)2(1:1,25°C)反应生成 Yb(II)烷氧基碘化物络合物 {[(2-Me2NCH2C6H4)3CO]Yb(μ-I)(THF)2}2 (II),产率为 57%。由于存在两个桥接碘配体,晶体态的络合物 II 是二聚体。与 Yb(II) 化合物不同,络合物 I 与 SmI2(THF)2 (1:1,25°C)在 THF 中发生交换反应,然后加入二甲氧基乙烷 (DME),金属被氧化,形成三价钐络合物 [(2-Me2NCH2C6H4)3CO]2SmI (III),该络合物的分离率为 60%。复合物的分子结构是通过 X 射线衍射(XRD)确定的(CIF 文件 CCDC 编号:2259700(I)、2259701(II)和 2259702(III))。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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