TY - JOUR
T1 - Syntheses of dialkali metal complexes of tetrakis(dimethylsilyl)ethylene
T2 - [(HMe2Si)2C=C(SiMe2H)2]2- [M+(ligand)(n)]2. Evidence for SiH-alkali metal agostic interactions
AU - Ichinohe, Masaaki
AU - Sekiguchi, Akira
AU - Takahashi, Masae
AU - Sakurai, Hideki
PY - 1999/8
Y1 - 1999/8
N2 - A series of dialkali metal complexes, [(HMe2Si)2C=C(SiMe2H)2]2- [M+(ligand)(n)]2 (M = Li, Na, K, Rb, Cs), were prepared by the reaction of tetrakis(dimethylsilylethylene) with alkali metals. These complexes exhibit Si-H alkali metal agostic interactions and have been characterized by spectroscopic and structural methods. Spectroscopic evidence for the interaction of the hydrogen on the silicon atom with alkali metals include (1) an unusually small value of the silicon-hydrogen coupling constant (1J(Si-H)) in NMR spectra and (2) low-energy Si-H stretching frequency in the infrared spectra. The smallest cation, Li+, can interact with SiH most strongly.
AB - A series of dialkali metal complexes, [(HMe2Si)2C=C(SiMe2H)2]2- [M+(ligand)(n)]2 (M = Li, Na, K, Rb, Cs), were prepared by the reaction of tetrakis(dimethylsilylethylene) with alkali metals. These complexes exhibit Si-H alkali metal agostic interactions and have been characterized by spectroscopic and structural methods. Spectroscopic evidence for the interaction of the hydrogen on the silicon atom with alkali metals include (1) an unusually small value of the silicon-hydrogen coupling constant (1J(Si-H)) in NMR spectra and (2) low-energy Si-H stretching frequency in the infrared spectra. The smallest cation, Li+, can interact with SiH most strongly.
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U2 - 10.1246/bcsj.72.1905
DO - 10.1246/bcsj.72.1905
M3 - Article
AN - SCOPUS:0032772843
SN - 0009-2673
VL - 72
SP - 1905
EP - 1910
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
IS - 8
ER -