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Cerium(III) and Cerium(IV) Bis(η8-pentalene) Sandwich Complexes:  Synthetic, Structural, Spectroscopic, and Theoretical Studies

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    Cerium(III) and Cerium(IV) Bis(η8-pentalene) Sandwich Complexes:  Synthetic, Structural, Spectroscopic, and Theoretical Studies
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    The Chemistry Department, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, U.K., Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, U.K., School of Chemistry, University of Edinburgh, Joseph Black Building, West Mains Road, Edinburgh, Scotland EH9 3JJ, and Institut Laue-Langevin, 6 Rue Jules Horowitz, BP 156−38042, Grenoble Cedex 9, France
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    Organometallics

    Cite this: Organometallics 2007, 26, 13, 3111–3119
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    https://doi.org/10.1021/om7002738
    Published May 23, 2007
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    Abstract

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    The Ce(III) anionic bis(pentalene) sandwich complex K[Ce{C8H4(SiiPr3-1,4)2}2] (1) has been prepared by treatment of CeCl3 with K2[C8H4(SiiPr3-1,4)2] and crystallographically characterized as its 18-crown-6 complex. Oxidation of 1 with Ag[BPh4] affords the neutral, formally Ce(IV) sandwich complex [Ce{C8H4(SiiPr3-1,4)2}2] (2), whose molecular structure has also been determined. The electronic structure of 2 has been investigated in detail by a combination of magnetic studies, K-edge XANES measurements, gas-phase photoelectron spectroscopy, and density functional calculations.

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    ‡

     University of Oxford.

    *

     Corresponding authors. E-mail:  [email protected]; [email protected].

    †

     University of Sussex.

    §

     University of Edinburgh.

    ⊥

     Institut Laue-Langevin.

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    Complete crystallographic details of the X-ray structures of 1 and 2. This material is available free of charge via the Internet at http://pubs.acs.org.

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    Organometallics

    Cite this: Organometallics 2007, 26, 13, 3111–3119
    Click to copy citationCitation copied!
    https://doi.org/10.1021/om7002738
    Published May 23, 2007
    Copyright © 2007 American Chemical Society
    Request reuse permissions

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