Catalytic oxidation of diorganosilanes to 1,1,3,3-tetraorganodisiloxanes with gold nanoparticle assembly at the water–chloroform interface†,New Journal of Chemistry

当前位置： X-MOL 学术 › New J. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Catalytic oxidation of diorganosilanes to 1,1,3,3-tetraorganodisiloxanes with gold nanoparticle assembly at the water–chloroform interface†
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2018-11-27 00:00:00 , DOI: 10.1039/c8nj04223c
Ravi Shankar _{1,

2,

3,

4} , Asmita Sharma _{1,

2,

3,

4} , Bhawana Jangir _{1,

2,

3,

4} , Manchal Chaudhary _{1,

2,

3,

4} , Gabriele Kociok-Köhn _{1,

5,

6,

7}

Affiliation

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.

中文翻译：

在水-氯仿界面上具有金纳米颗粒组装的二有机硅烷催化氧化为1,1,3,3-四有机二硅氧烷†

通过使用环四硅氧烷[RSCH ₂ CH ₂ SiMeO] ₄（R = CH ₂ CH ₂ OH）作为水，在水-氯仿界面上形成200±20 nm尺寸的金纳米颗粒（AuNPs）的球形自组装体。稳定配体。界面稳定的AuNPs可作为多功能催化剂，用于选择性水解氧化仲有机硅烷中的一个Si–H键RR ¹ SiH ₂（R，R ¹ =烷基，芳基和硅烷基），以提供较高的合成1,1,3,3-四有机二硅氧烷（（HRR ¹ Si）₂O.这项研究首次揭示了在可见光辐射下激发AuNPs的表面等离振子共振所产生的光热效应在增强环境温度下的催化活性中的作用。

更新日期：2018-11-27

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11