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Chemical Tricks To Stabilize Silanones and Their Heavier Homologues with E[DOUBLE BOND]O Bonds (E=Si–Pb): From Elusive Species to Isolable Building Blocks

Authors

  • Dr. Yun Xiong,

    1. Department of Chemistry: Metallorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin (Germany)
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  • Dr. Shenglai Yao,

    1. Department of Chemistry: Metallorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin (Germany)
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  • Prof. Dr. Matthias Driess

    Corresponding author
    1. Department of Chemistry: Metallorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin (Germany)
    • Department of Chemistry: Metallorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin (Germany)===

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Abstract

In contrast to the well-established chemistry of ketones (R2C[DOUBLE BOND]O), the reactivity of the elusive heavier congeners R2E[DOUBLE BOND]O (E=Si, Ge, Sn, Pb) is far less explored because of the high polarity of the E[DOUBLE BOND]O bonds and hence their tendency to oligomerize with no activation barrier. Very recently, great advances have been achieved in the synthesis of isolable compounds with E[DOUBLE BOND]O bonds, including the investigation of donor-stabilized isolable silanones and the first stable “genuine” germanone. These compounds show drastically different reactivities compared to ketones and represent versatile building blocks in silicon–oxygen and germanium–oxygen chemistry. This and other exciting achievements are described in this Minireview.

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