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

Ravi Shankar, Asmita Sharma, Bhawana Jangir, Manchal Chaudhary, Gabriele Kociok-Köhn

Research output: Contribution to journalArticle

Abstract

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

Original languageEnglish
Pages (from-to)813-819
Number of pages7
JournalNew Journal of Chemistry
Volume43
Issue number2
Early online date27 Nov 2018
DOIs
Publication statusPublished - 14 Jan 2019

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

Cite this

Catalytic oxidation of diorganosilanes to 1,1,3,3-tetraorganodisiloxanes with gold nanoparticle assembly at the water-chloroform interface. / Shankar, Ravi; Sharma, Asmita; Jangir, Bhawana; Chaudhary, Manchal; Kociok-Köhn, Gabriele.

In: New Journal of Chemistry, Vol. 43, No. 2, 14.01.2019, p. 813-819.

Research output: Contribution to journalArticle

@article{dcc5e5d9b8944eb5aa8a4923e462a7a8,
title = "Catalytic oxidation of diorganosilanes to 1,1,3,3-tetraorganodisiloxanes with gold nanoparticle assembly at the water-chloroform interface",
abstract = "The formation of the spherical self-assembly of gold nanoparticles (AuNPs) of 200 ± 20 nm size at the water-chloroform interface is achieved by employing the cyclotetrasiloxane [RSCH2CH2SiMeO]4 (R = CH2CH2OH) as the stabilizing ligand. The interfacially stabilized AuNPs act as a versatile catalyst for selective hydrolytic oxidation of only one of the Si-H bonds in secondary organosilanes, RR1SiH2 (R, R1 = alkyl, aryl, and sila-alkyl), to afford the high yield synthesis of 1,1,3,3-tetraorganodisiloxanes, (HRR1Si)2O. The study unravels for the first time the role of the photothermal effect arising from the excitation of the surface plasmon resonance of the AuNPs under visible light irradiation in enhancing the catalytic activity at ambient temperature.",
author = "Ravi Shankar and Asmita Sharma and Bhawana Jangir and Manchal Chaudhary and Gabriele Kociok-K{\"o}hn",
year = "2019",
month = "1",
day = "14",
doi = "10.1039/C8NJ04223C",
language = "English",
volume = "43",
pages = "813--819",
journal = "New Journal of Chemistry",
issn = "1144-0546",
publisher = "Royal Society of Chemistry",
number = "2",

}

TY - JOUR

T1 - Catalytic oxidation of diorganosilanes to 1,1,3,3-tetraorganodisiloxanes with gold nanoparticle assembly at the water-chloroform interface

AU - Shankar, Ravi

AU - Sharma, Asmita

AU - Jangir, Bhawana

AU - Chaudhary, Manchal

AU - Kociok-Köhn, Gabriele

PY - 2019/1/14

Y1 - 2019/1/14

N2 - The formation of the spherical self-assembly of gold nanoparticles (AuNPs) of 200 ± 20 nm size at the water-chloroform interface is achieved by employing the cyclotetrasiloxane [RSCH2CH2SiMeO]4 (R = CH2CH2OH) as the stabilizing ligand. The interfacially stabilized AuNPs act as a versatile catalyst for selective hydrolytic oxidation of only one of the Si-H bonds in secondary organosilanes, RR1SiH2 (R, R1 = alkyl, aryl, and sila-alkyl), to afford the high yield synthesis of 1,1,3,3-tetraorganodisiloxanes, (HRR1Si)2O. The study unravels for the first time the role of the photothermal effect arising from the excitation of the surface plasmon resonance of the AuNPs under visible light irradiation in enhancing the catalytic activity at ambient temperature.

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

UR - http://www.scopus.com/inward/record.url?scp=85059535950&partnerID=8YFLogxK

U2 - 10.1039/C8NJ04223C

DO - 10.1039/C8NJ04223C

M3 - Article

VL - 43

SP - 813

EP - 819

JO - New Journal of Chemistry

JF - New Journal of Chemistry

SN - 1144-0546

IS - 2

ER -