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From {Bi22O26} to Chiral Ligand-Protected {Bi38O45}-Based Bismuth Oxido Clusters

Authors

  • Dirk Mansfeld,

    1. Professur für Koordinationschemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany), Fax: (+49)-371-531-21219
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  • Linda Miersch,

    1. Professur für Koordinationschemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany), Fax: (+49)-371-531-21219
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  • Tobias Rüffer,

    1. Professur für Anorganische Chemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany)
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  • Dieter Schaarschmidt,

    1. Professur für Anorganische Chemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany)
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  • Prof. Dr. Heinrich Lang,

    1. Professur für Anorganische Chemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany)
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  • Tony Böhle,

    1. Professur für Koordinationschemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany), Fax: (+49)-371-531-21219
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  • Ralf W. Troff,

    1. Institut für Chemie und Biochemie und Center of Supramolecular Interactions (CSI Berlin), Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany)
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  • Prof. Dr. Christoph A. Schalley,

    1. Institut für Chemie und Biochemie und Center of Supramolecular Interactions (CSI Berlin), Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany)
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  • Prof. Dr. Jens Müller,

    1. University of Münster, Institute of Inorganic and Analytical Chemistry, Correnstrasse 28/30, 48149 Münster (Germany)
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  • Prof. Dr. Michael Mehring

    Corresponding author
    1. Professur für Koordinationschemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany), Fax: (+49)-371-531-21219
    • Professur für Koordinationschemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz (Germany), Fax: (+49)-371-531-21219
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Abstract

The reaction of [Bi22O26(OSiMe2tBu)14] (1) in THF with salicylic acid gave [Bi22O24(HSal)14] (2) first, which was converted into [Bi38O45(HSal)22(OH)2(DMSO)16.5] ⋅DMSO⋅H2O (3⋅DMSO⋅H2O) after dissolution and crystallization from DMSO. Single-crystal X-ray diffraction analysis and ESI mass spectrometry associated with infrared multi-photon dissociation (IRMPD) tandem MS experiments confirm the formation of the large and quite stable bismuth oxido cluster 3. The reaction of compound 2 with the butoxycarbonyl(BOC)-protected amino acids phenylalanine and valine (BOC-PheOH and BOC-ValOH), respectively, resulted in the formation of chiral [Bi38O45(BOC-AA)22(OH)2] (AA=deprotonated amino acid), as shown by a combination of different analytical techniques such as elemental analysis, dynamic light scattering, circular dichroism spectroscopy, and ESI mass spectrometry.

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