Heterometallic Complex of Europium(III) Trifluoroacetate with Bis(diphenylphosphoryl)ferrocene (DppfO2): Synthesis, Structure, and Thermal Stability

IF 1.1 3区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Coordination Chemistry Pub Date : 2025-07-29 DOI:10.1134/S1070328425600445

M. A. Uvarova, M. A. Shmelev, V. A. Eliseenkova, I. A. Lutsenko, I. L. Eremenko

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Abstract

The reaction of aqueous europium(III) trifluoroacetate with bis(diphenylphosphoryl)ferrocene (DppfO₂) in a tetrahydrofuran–benzene (1 : 1) mixture of solvents affords a new bimetallic complex [Eu₂(OOCCF₃)₆(H₂O)₂(DppfO₂)₂] (I). The complex is characterized by X-ray diffraction (XRD) analysis (CIF file CCDC no. 2425374), IR spectroscopy, and elemental analysis. According to the XRD results, compound I is a molecular complex in which two europium atoms are linked by the bridging water molecules and trifluoroacetate anions and the terminal DppfO₂ molecules are coordinated via the chelate mode. According to the simultaneous thermal analysis data, the complex is thermally stable up to 200°С, and its decomposition is accompanied by an exothermic effect at 285°С related to the desorption of four trifluoroacetic acid molecules.

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三氟乙酸铕与二（二苯磷基）二茂铁（DppfO2）的异金属配合物：合成、结构和热稳定性

在四氢呋喃-苯（1:1）混合溶剂中，水溶液铕（III）三氟乙酸与双（二苯基磷基）二茂铁（DppfO2）反应生成了一种新的双金属配合物[Eu2(OOCCF3)6(H2O)2(DppfO2)2] (I)。该配合物通过x射线衍射（XRD）分析（CIF文件CCDC号）进行了表征。2425374)，红外光谱和元素分析。根据XRD结果，化合物I是一个分子配合物，其中两个铕原子由桥接的水分子和三氟乙酸阴离子连接，末端的DppfO2分子通过螯合方式配位。根据同时进行的热分析数据，该配合物在200°С温度下热稳定，其分解在285°С温度下伴有与四个三氟乙酸分子解吸有关的放热效应。

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来源期刊

Russian Journal of Coordination Chemistry 化学-无机化学与核化学

CiteScore

2.40

自引率

15.80%

发文量

审稿时长

7.2 months

期刊介绍： Russian Journal of Coordination Chemistry is a journal that publishes reviews, original papers, and short communications on all aspects of theoretical and experimental coordination chemistry. Modern coordination chemistry is an interdisciplinary science that makes a bridge between inorganic, organic, physical, analytical, and biological chemistry.