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Mixed cyclopentadienyl-naphthalene complexes of rare-earth elements: mono- and binuclear derivatives. Molecular structure of (η5-C5H5)YC10H8(DME)

  • Organometallic Chemistry
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Russian Chemical Bulletin Aims and scope

Abstract

Reaction of CpLnCl2(THF)3 (Ln = Y, Gd, Er, and Tm) with sodium naphthalenide in 1,2-dimethoxyethane (DME) gives mononuclear complexes CpLnC10H8(DME). Binuclear complexes (CpLn)2C10H8(THF)4 (Ln = Sm and Yb) containing the Ln atoms in the oxidation state +2 are formed in similar reactions of Sm and Yb complexes. The structure of CpYC10H8(DME) was determined by the X-ray diffraction method. The coordinated naphthalene ring linked to the Y atom is nonplanar: it is bent by an angle 26.1° over the C(1)...C(4) line. The existence of two short, Y(1)-C(1) and Y(1)-C(4) (2.438(6) and 2.452(6) Å), and two long, Y(1)-C(2) and Y(1)-C(3) (2.599(7) and 2.598(7) A), Y-C(C10H8) bonds testifies to the 2η 1:η2-interaction of the Y atom with the naphthalene dianion. The same yttrium complex in a mixture with Cp3Y is formed in the reaction of Cp2YCl with sodium naphthalenide.

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Authors and Affiliations

  1. Russian Academy of Sciences, G. A. RaZuvaev Institute of Organometallic Chemistry, 49 ul. Tropinina, 603600, Nizhnii Novgorod, Russian Federation

    A. V. Protchenko, L. N. Zakharov, G. K. Fukin & M. N. Bochkareva

  2. A. N. Nesmeyanov Institute of Organoelement Compounds, 28 ul. Vavilova, 117813, Moscow, Russian Federation

    Va. T. Struchkov

Authors
  1. A. V. Protchenko
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  2. L. N. Zakharov
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  3. G. K. Fukin
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  4. Va. T. Struchkov
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  5. M. N. Bochkareva
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Additional information

Deceased.

Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 993–997, April, 1996.

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Protchenko, A.V., Zakharov, L.N., Fukin, G.K. et al. Mixed cyclopentadienyl-naphthalene complexes of rare-earth elements: mono- and binuclear derivatives. Molecular structure of (η5-C5H5)YC10H8(DME). Russ Chem Bull 45, 950–953 (1996). https://doi.org/10.1007/BF01431330

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  • DOI: https://doi.org/10.1007/BF01431330

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