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Hydrosilylation in the 2D interlayer space between inorganic layers: reaction between immobilized CC groups on the interlayer surface of layered perovskite HLaNb2O7·xH2O and chlorohydrosilanes by Satoru Yoshioka; Yosuke Takeda; Yuko Uchimaru; Yoshiyuki Sugahara is a Chemistry article available to read on EtoBox.

What is Hydrosilylation in the 2D interlayer space between inorganic layers: reaction between immobilized CC groups on the interlayer surface of layered perovskite HLaNb2O7·xH2O and chlorohydrosilanes about?

The CÄ/C bonds immobilized in the interlayer space of layered perovskite, HLaNb 2 O 7 ×/x H 2 O, have undergone hydrosilylation reactions with chlorohydrosilanes. The CÄ/C bonds are immobilized by the reaction between an n -propoxyl derivative of HLaNb 2 O 7 ×/x H 2 O and 4-penten-1-ol to form a CH 2 Ä/CH(CH 2 ) 3 O Ã/ derivative of HLaNb 2 O 7 ×/x H 2 O, and a corresponding increase in the interlayer distance from 1.54 to 1.85 nm is observed. The CH 2 Ä/CH(CH 2 ) 3 O Ã/ derivative is further treated with dichloromethylsilane or trichlorosilane, and the interlayer distance increases to 2.41 (dichloromethylsilane) or 2.07 (trichlorosilane) nm. Solid-state 13 C-CP/MAS-NMR spectroscopy and infra-red (IR) spectroscopy reveal that the CÄ/C groups disappear after the treatment with dichloromethylsilane or trichlorosilane, and 13 C-NMR signals assignable to the hydrosilylated products are clearly observed. Besides hydrosilylation reactions, siloxane formation involving hydrolysis of the Si Ã/Cl groups also proceeds. The structure of the perovskite-like slabs in HLaNb 2 O 7 ×/x H 2 O is preserved throughout the process, indicating the successful modification of immobilized C Ä/C groups via

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Author

Satoru Yoshioka; Yosuke Takeda; Yuko Uchimaru; Yoshiyuki Sugahara

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

2003

Language

EN

Field

Chemistry (Physical Sciences)