Cage-templated synthesis of highly stable palladium nanoparticles and their catalytic activities in Suzuki–Miyaura coupling,Chemical Science

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Cage-templated synthesis of highly stable palladium nanoparticles and their catalytic activities in Suzuki–Miyaura coupling
Chemical Science ( IF 7.6 ) Pub Date : 2017-11-09 00:00:00 , DOI: 10.1039/c7sc03148c
Li Qiu _{1,

2,

3,

4,

5} , Ryan McCaffrey _{6,

7,

8} , Yinghua Jin _{6,

7,

8} , Yu Gong _{6,

7,

8} , Yiming Hu _{6,

7,

8} , Hongliang Sun _{1,

2,

3,

4,

5} , Wounjhang Park _{7,

8,

9,

10} , Wei Zhang _{1,

2,

3,

4,

5}

Affiliation

We report the controlled synthesis of small palladium nanoparticles (PdNPs) with narrow particle size distribution (1.8 ± 0.2 nm) using an organic molecular cage as a template. The well-defined cage structure and thioether anchoring groups inside the cavity are critical for the formation of narrowly distributed PdNPs, offering a confined organic molecular environment and guiding PdNP nucleation and growth. The resulting encapsulated PdNPs are resistant to agglomeration and stable in solution exposed to air at room temperature. When provided with a protective cage shell with minimum surface coverage, such PdNPs are capable of catalyzing organic reactions, showing high catalytic activity in Suzuki–Miyaura coupling reactions.

中文翻译：

笼式模板合成高稳定性钯纳米粒子及其在铃木-宫浦偶联中的催化活性

我们报告了使用有机分子笼作为模板，具有窄粒度分布（1.8±0.2 nm）的小钯纳米粒子（PdNPs）的受控合成。腔内明确定义的笼状结构和硫醚锚定基团对于窄分布的PdNP的形成至关重要，可提供受限的有机分子环境并指导PdNP的成核和生长。所得封装的PdNP具有抗团聚作用，并且在室温下暴露于空气的溶液中稳定。当提供具有最小表面覆盖率的保护性笼壳时，此类PdNP能够催化有机反应，在Suzuki-Miyaura偶联反应中显示出高催化活性。

更新日期：2017-11-22

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