Creation of Exotic π-Electron Systems by Introduction of Heavy Elements and Expansion of the Concept of Aromaticity

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Abstract

<p>We succeeded in the synthesis of dilithio-stannoles and a -plumbole, which possess aromatic character, as evidenced by structural analysis and quantum-chemical calculations, and accordingly the concept of aromaticity can now be expanded to tin- and lead-containing π-conjugated systems. Reactivity of dilithio-stannoles and a -plumbole toward alkyl-, aryl-, and metal-halides was investigated. Stepwise oxidation of a dilithiostannole using oxygen gas yielded a 1,2-dilithiobistannole and a 1,3-dilithioterstannole. The combination of the aromatic dianionic ligands and transition metals produced unique electronic structures that could not be created by the use of cyclopentadienyl and its related carbon-only ligands. These new findings would inspire a new chemical bond theory, materials science, and catalytic chemistry. The serendipitous formation of a pentaorganostannate bearing five carbon substituents and a dibenzopentalenide is also described.</p>

Journal

  • Bulletin of the Chemical Society of Japan

    Bulletin of the Chemical Society of Japan 91(7), 1009-1019, 2018

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130007404811
  • NII NACSIS-CAT ID (NCID)
    AA00580132
  • Text Lang
    ENG
  • ISSN
    0009-2673
  • NDL Article ID
    029089156
  • NDL Call No.
    Z53-B35
  • Data Source
    NDL  J-STAGE 
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