TY - JOUR
T1 - Hydrosilylation in the 2D interlayer space between inorganic layers
T2 - Reaction between immobilized C=C groups on the interlayer surface of layered perovskite HLaNb2O7·x H2O and chlorohydrosilanes
AU - Yoshioka, Satoru
AU - Takeda, Yosuke
AU - Uchimaru, Yuko
AU - Sugahara, Yoshiyuki
N1 - Funding Information:
The authors gratefully thank Prof. Kazuyuki Kuroda, Department of Applied Chemistry at Waseda University, for his valuable suggestions. This work was financially supported in part by the Grant-in-Aid for Scientific Research (No. 14350462) from the Ministry of Education, Science, Sports, and Culture, Japan and by 21COE “Practical Nano-Chemistry” from MEXT, Japan.
PY - 2003/12/1
Y1 - 2003/12/1
N2 - The C=C bonds immobilized in the interlayer space of layered perovskite, HLaNb2O7·xH2O, have undergone hydrosilylation reactions with chlorohydrosilanes. The C-C bonds are immobilized by the reaction between an n-propoxyl derivative of HLaNb2O7·xH2O and 4-penten-1-ol to form a CH2=CH(CH2)3 O- derivative of HLaNb2O7·xH2O, and a corresponding increase in the interlayer distance from 1.54 to 1.85 nm is observed. The CH2=CH(CH2)3 O- derivative is further treated with dichloromethylsilane or trichlorosilane, and the interlayer distance increases to 2.41 (dichloromethylsilane) or 2.07 (trichlorosilane) nm. Solid-state 13C-CP/MAS-NMR spectroscopy and infra-red (IR) spectroscopy reveal that the C-C groups disappear after the treatment with dichloromethylsilane or trichlorosilane, and 13C-NMR signals assignable to the hydrosilylated products are clearly observed. Besides hydrosilylation reactions, siloxane formation involving hydrolysis of the Si-Cl groups also proceeds. The structure of the perovskite-like slabs in HLaNb2O7·xH 2O is preserved throughout the process, indicating the successful modification of immobilized C-C groups via hydrosilylation with no structural change in the inorganic host layers.
AB - The C=C bonds immobilized in the interlayer space of layered perovskite, HLaNb2O7·xH2O, have undergone hydrosilylation reactions with chlorohydrosilanes. The C-C bonds are immobilized by the reaction between an n-propoxyl derivative of HLaNb2O7·xH2O and 4-penten-1-ol to form a CH2=CH(CH2)3 O- derivative of HLaNb2O7·xH2O, and a corresponding increase in the interlayer distance from 1.54 to 1.85 nm is observed. The CH2=CH(CH2)3 O- derivative is further treated with dichloromethylsilane or trichlorosilane, and the interlayer distance increases to 2.41 (dichloromethylsilane) or 2.07 (trichlorosilane) nm. Solid-state 13C-CP/MAS-NMR spectroscopy and infra-red (IR) spectroscopy reveal that the C-C groups disappear after the treatment with dichloromethylsilane or trichlorosilane, and 13C-NMR signals assignable to the hydrosilylated products are clearly observed. Besides hydrosilylation reactions, siloxane formation involving hydrolysis of the Si-Cl groups also proceeds. The structure of the perovskite-like slabs in HLaNb2O7·xH 2O is preserved throughout the process, indicating the successful modification of immobilized C-C groups via hydrosilylation with no structural change in the inorganic host layers.
KW - Chlorosilane
KW - Dion-Jacobson phase
KW - Grafting reaction
KW - Hydrosilylation
KW - Interlayer surface modification
KW - Layered perovskite
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U2 - 10.1016/S0022-328X(03)00618-1
DO - 10.1016/S0022-328X(03)00618-1
M3 - Article
AN - SCOPUS:0142057010
VL - 686
SP - 145
EP - 150
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
SN - 0022-328X
IS - 1-2
ER -