Compounds of Group 14 Elements with an Element-Element (E = Si, Ge, Sn) Bond: Effect of the Nature of the Element Atom

Kirill V. Zaitsev, Elmira Kh Lermontova, Andrei V. Churakov, Viktor A. Tafeenko, Boris N. Tarasevich, Oleg Kh Poleshchuk, Anastasia V. Kharcheva, Tatiana V. Magdesieva, Oleg M. Nikitin, Galina S. Zaitseva, Sergey S. Karlov

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)

    Abstract

    Two series of germanium compounds, (p-Tol)3Ge-MMe3 (M = Si (1), Ge (2), Sn (3)) and (Me3Si)3Ge-MPh3 (M = Ge (4), Sn (5)), were prepared using lithium or potassium intermediates. The changing of the reaction conditions results in trigermane Ph3Ge-Ge(SiMe3)2-GePh3 (6). The molecular structures of 1, 2, and 6 were investigated by X-ray analysis. By UV/visible spectroscopy it is established that introduction of a tin atom results in a significant bathochromic absorption shift. Furthermore, according to cyclic voltammetry, oxidation potentials decrease in the order 1 > 2 > 3. The electronic structures of 1-4 and related (Me3Si)3Ge-SiPh3 were investigated by DFT calculations. Fluorescence properties of 1-3 were studied in the solid state and in solution; for compound 3 phosphorescence (lifetime is 4.58 ms) is observed in the solid state. (Graph Presented).

    Original languageEnglish
    Pages (from-to)2765-2774
    Number of pages10
    JournalOrganometallics
    Volume34
    Issue number12
    DOIs
    Publication statusPublished - 22 Jun 2015

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Organic Chemistry
    • Inorganic Chemistry

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