Synthesis and Structure of Cyclopentadienylmolybdenum Tricarbonylate Complexes of Yttrium(III) and Ytterbium(II)

IF 0.9 4区化学 Q4 CHEMISTRY, ORGANIC

Russian Journal of Organic Chemistry Pub Date : 2025-08-18 DOI:10.1134/S107042802560250X

D. M. Lyubov, A. V. Cherkasov, A. A. Trifonov

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Abstract

The heterobimetallic complex [(G^iPr)₂Y{(μ²-CO)₂MoCp(CO)}]₂ (1) was synthesized in 72% yield by the exchange reaction of equimolar amounts of the bisguanidinato chloro yttrium complex (G^iPr)₂Y(μ-Cl)₂· Li(THF)₂ and Na[CpMo(CO)₃]. The reaction of monoamidinato bis(trimethylsilylmethyl) yttrium complex AmdY(CH₂SiMe₃)₂(THF) with 2 equiv of CpMo(CO)₃H involved elimination of tetramethylsilane to afford 66% of the heterobimetallic complex [AmdY(THF)₂{(μ²-CO)MoCp(CO)₂(μ²-CO)₂MoCp(CO)}]₂ (2). The naphthalene ytterbium complex (C₁₀H₈)Yb(THF)₂ reacted with CpMo(CO)₃H at a molar ratio of 1:2 to produce Yb(II) heterobimetallic complex [Yb(THF)₄{(μ²-CO)₂MoCp(CO)}₂]_n (3). As shown by the X-ray diffraction data, complexes 1–3 contain a tetranuclear heterobimetallic framework Ln₂Mo₂, in which Y³⁺ or Yb²⁺ ions are linked to molybdenum ions through bridging carbonyl ligands, and complex 3 is a coordination polymer.

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钇（III）和钇（II）环戊二烯基三碳酸钼配合物的合成与结构

用等摩尔量的双胍-氯钇配合物（GiPr）2Y(μ-Cl)2·Li(THF)2和Na[CpMo(CO)3]进行交换反应，以72%的收率合成了杂双金属配合物[(GiPr)2Y{(μ -CO)2MoCp(CO)}]2(1)。单脒合成双（三甲基硅基甲基）钇配合物AmdY(CH2SiMe3)2（THF）与2等量的CpMo(CO)3H反应，消除了四甲基硅烷，得到66%的杂双金属配合物[AmdY(THF)2{(μ2-CO)MoCp(CO)2(μ2-CO)2MoCp(CO)}]2(2)。萘-萘镱配合物（C10H8）Yb(THF)2与CpMo(CO)3H以1:2的摩尔比反应生成Yb（II）杂双金属配合物[Yb(THF)4{(μ2-CO)2MoCp(CO)}2]n(3)。x射线衍射数据表明，配合物1-3含有四核杂双金属骨架Ln2Mo2，其中Y3+或Yb2+离子通过桥接羰基配体与钼离子连接，配合物3为配位聚合物。

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来源期刊

Russian Journal of Organic Chemistry 化学-有机化学

CiteScore

1.40

自引率

25.00%

发文量

139

审稿时长

3-6 weeks

期刊介绍： Russian Journal of Organic Chemistry is an international peer reviewed journal that covers all aspects of modern organic chemistry including organic synthesis, theoretical organic chemistry, structure and mechanism, and the application of organometallic compounds in organic synthesis.