Synthesis and properties of a new kinetically stabilized digermyne: New insights for a germanium analogue of an alkyne

被引:167
作者
Sugiyama, Y
Sasamori, T
Hosoi, Y
Furukawa, Y
Takagi, N
Nagase, S
Tokitoh, N [1 ]
机构
[1] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan
[2] Waseda Univ, Sch Sci & Engn, Dept Chem, Shinjyuku Ku, Tokyo 1698555, Japan
[3] Inst Mol Sci, Dept Theoret Mol Sci, Okazaki, Aichi 4448585, Japan
关键词
D O I
10.1021/ja057205y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reduction of an overcrowded (E)-1,2-dibromodigermene, Bbt(Br)Ge=Ge(Br)Bbt (2) [Bbt = 2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl], with KC8 afforded a stable digermyne, BbtGe GeBbt (1). The Ge Ge triple-bond characters of 1 were revealed by the X-ray crystallographic analysis and spectroscopic studies (UV/vis and Raman spectra) together with theoretical calculations. The Ge Ge bond lengths of the two nonidentical molecules of 1 observed in the unit cell were shorter than that of the previously reported digermyne, Ar'Ge GeAr' (Ar' = 2,6-Dip(2)C(6)H(3), Dip = 2,6-diisopropylphenyl).
引用
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页码:1023 / 1031
页数:9
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