Homochiral Supramolecular M2L4 Cages by High-Fidelity Self-Sorting of Chiral Ligands

Authors

  • Dr. Christoph Gütz,

    1. Kekulé-Institut für Organischen Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany), Fax: (+49) 228-73-9608
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  • Rainer Hovorka,

    1. Kekulé-Institut für Organischen Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany), Fax: (+49) 228-73-9608
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  • Dr. Gregor Schnakenburg,

    1. Institut für Anorganische Chemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany)
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  • Prof. Dr. Arne Lützen

    Corresponding author
    1. Kekulé-Institut für Organischen Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany), Fax: (+49) 228-73-9608
    • Kekulé-Institut für Organischen Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany), Fax: (+49) 228-73-9608
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Abstract

A 1,1′-binaphthyl-based bis(pyridine) ligand (1) was prepared in racemic and enantiomerically pure form to study the formation of [Pd2(1)4] complexes upon coordination to palladium(II) ions with regard to the degree of chiral self-sorting. The self-assembly process proceeds in a highly selective narcissistic self-recognition manner to give only homochiral supramolecular M2L4 cages, which were characterized by ESI-MS, NMR, and electronic circular dichroism (ECD) spectroscopy, as well as by single-crystal XRD analysis.

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