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Synthesis and structures of new metallocene derivatives of lanthanides. Molecular structures of the complexes (C13H9)2Eu(THF)2 and (C5Me4H)2YbI(THF)

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Abstract

The divalent europium bis-fluorenyl complex (C13H9)2Eu(THF)2 was synthesized by the metathesis reaction of EuI2(THF)2 with two equivalents of fluorenylpotassium and by the protolytic substitution of the naphthalene ligand in the (C10H8)Eu(THF)2 complex using the reaction with fluorene. According to X-ray diffraction data, the complex displays a skewed sandwich structure, in which one fluorenyl ligand is η5-coordinated to the metal atom, whereas the η3-coordination mode makes a great contribution to the coordination of another ligand. The (C5Me4H)2YbI(THF) complex was synthesized by the reaction of YbI3(THF)2 with two equivalents of (C5Me4H)K. The structure of the complex was established by X-ray diffraction.

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Authors and Affiliations

  1. G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 ul. Tropinina, 603950, Nizhnii Novgorod, Russian Federation

    I. A. Borovkov, G. K. Fukin & A. A. Trifonov

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  1. I. A. Borovkov
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  2. G. K. Fukin
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  3. A. A. Trifonov
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Correspondence to A. A. Trifonov.

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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 530–534, March, 2008.

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Borovkov, I.A., Fukin, G.K. & Trifonov, A.A. Synthesis and structures of new metallocene derivatives of lanthanides. Molecular structures of the complexes (C13H9)2Eu(THF)2 and (C5Me4H)2YbI(THF). Russ Chem Bull 57, 541–545 (2008). https://doi.org/10.1007/s11172-008-0083-y

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  • DOI: https://doi.org/10.1007/s11172-008-0083-y

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