TY - JOUR
T1 - Compounds of Group 14 Elements with an Element-Element (E = Si, Ge, Sn) Bond
T2 - Effect of the Nature of the Element Atom
AU - Zaitsev, Kirill V.
AU - Lermontova, Elmira Kh
AU - Churakov, Andrei V.
AU - Tafeenko, Viktor A.
AU - Tarasevich, Boris N.
AU - Poleshchuk, Oleg Kh
AU - Kharcheva, Anastasia V.
AU - Magdesieva, Tatiana V.
AU - Nikitin, Oleg M.
AU - Zaitseva, Galina S.
AU - Karlov, Sergey S.
PY - 2015/6/22
Y1 - 2015/6/22
N2 - 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).
AB - 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).
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U2 - 10.1021/om501293t
DO - 10.1021/om501293t
M3 - Article
AN - SCOPUS:84934898456
VL - 34
SP - 2765
EP - 2774
JO - Organometallics
JF - Organometallics
SN - 0276-7333
IS - 12
ER -