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Determination of the hydride concentration in alkyldiboranes(6) by 11B NMR spectroscopy – Reduction of inorganic selenium and tellurium compounds

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Abstract

As an alternative to volumetric analysis, 11B NMR spectroscopy can be used to determine the hydride concentration and the relative amount of different active hydride species in mixtures of alkyldiboranes(6) (alkyl = Et, Pr). Inorganic selenium(IV) compounds react with propyldiboranes(6) at first to give elemental selenium (hydride number HN = 4) and after prolonged heating at 130 °C to selenides (HN = 6). In contrast, tellurium(IV) and tellurium(VI) compounds are reduced only to elemental tellurium.

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Authors and Affiliations

  1. Universität Bayreuth, Anorganische Chemie II, D-95440 Bayreuth, Germany, , , , , , DE

    B. Wrackmeyer & Hans-Jörg Schanz

  2. Max-Planck-Institut für Kohlenforschung, D-45466 Mülheim a. d. Ruhr, Germany, , , , , , DE

    Wilhelm Schüßler & Roland Köster

Authors
  1. B. Wrackmeyer
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  2. Hans-Jörg Schanz
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  3. Wilhelm Schüßler
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  4. Roland Köster
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Received: 31 March 1998 / Accepted: 26 April 1998

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Wrackmeyer, B., Schanz, HJ., Schüßler, W. et al. Determination of the hydride concentration in alkyldiboranes(6) by 11B NMR spectroscopy – Reduction of inorganic selenium and tellurium compounds. Fresenius J Anal Chem 362, 378–381 (1998). https://doi.org/10.1007/s002160051088

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  • DOI: https://doi.org/10.1007/s002160051088

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