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Catalytic oxidation of diorganosilanes to 1,1,3,3-tetraorganodisiloxanes with gold nanoparticle assembly at water-chloroform interface

Abstract

The formation of spherical self-assembly of gold nanoparticles (AuNPs) of 200 ± 20 nm size at water-chloroform interface is achieved by employing the cyclic [RSCH2CH2SiMeO]4 (R = CH2CH2OH) as the stabilizing ligand. The interfacillay stabilized AuNPs act as a verstaile catalyst for selective hydrolytic oxidation of Si-H bond in secondary organosilanes, RR1SiH2 (R, R1 = alkyl, aryl, sila-alkyl) to afford high yield synthesis of 1, 1, 3, 3-tetraorganodisiloxanes, (HRR1Si)2O. The study unravels for the first time the role of photothermal effect arising from excitation of surface plasmon resonance of AuNPs under visible light irradiation in enhancing the catalytic activity at ambient temperature.

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Publication details

The article was received on 18 Aug 2018, accepted on 27 Nov 2018 and first published on 27 Nov 2018


Article type: Paper
DOI: 10.1039/C8NJ04223C
Citation: New J. Chem., 2018, Accepted Manuscript
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    Catalytic oxidation of diorganosilanes to 1,1,3,3-tetraorganodisiloxanes with gold nanoparticle assembly at water-chloroform interface

    R. Shankar, A. Sharma, B. Jangir, M. Chaudhary and G. Kociok-Kohn, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ04223C

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