Hydrosilylation between the C=C bonds of 4-pentenyl-1-oxy groups grafted on the interlayer surface of layered perovskite HLaNb2O7 and hydride-terminated polydimethylsiloxane

Abstract

The hydrosilylation between layered perovskite, HLaNb₂O₇, possessing C=C bonds and hydride-terminated polydimethylsiloxane was investigated. XRD analysis showed the basal spacing was increased from 1.84 nm to 2.54 nm after the reaction. IR spectroscopy exhibited the presence of dimethylsilyl groups in the resultant product. Carbon-13 CP/MAS NMR spectroscopy showed the new signals(17.7 and 24.2 ppm)attributed to the Si-CH₂-CH₂- and Si-CH₂-CH₂-. Silicon-29 CP/MAS NMR spectroscopy showed the present of (CH₃)₂Si(OSi)CH₂ groups and (CH₃)₂Si(OSi)₂ groups. These results suggest hydrosilylation proceeded, leading to the formation of the new organic derivative of layered perovskite.