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Crystal structure of the La3+ sandwich complex based on 8-membered macrocyclic siloxanolate ligands

  • Organometallic Chemistry
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Russian Chemical Bulletin Aims and scope

Abstract

The product of the reaction between anhydrous lanthanum trichloride and potassium vinylsiloxanolate, K5[VinSiO2]8La44-OH)[O2SiVin]8 · 5n-BuOH·2H2O has been studied by X-ray diffraction. The compound is a «sandwich»-type complex where macrocyclic vinyloctasiloxanolate ligands with regularcis-configuration have co-axial and antiparallel orientation. These ligands coordinate a planar «cationic layer» formed by four La3+ ions and stabilized by an additional μ4-OH bridge ligand. A three-dimensional cage structure of complex lanthansiloxanolate pentaanions linked through the coordinated K+ counter-ions is formed in the crystal studied.

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Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 1, pp. 184–189, January, 1993.

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Igonin, V.A., Lindeman, S.V., Struchkov, Y.T. et al. Crystal structure of the La3+ sandwich complex based on 8-membered macrocyclic siloxanolate ligands. Russ Chem Bull 42, 168–173 (1993). https://doi.org/10.1007/BF00700002

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  • DOI: https://doi.org/10.1007/BF00700002

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