4.7 Article

Water-Soluble Palladium Nanoclusters as Catalysts in Ligand-Free Suzuki-Miyaura Cross-Coupling Reactions

期刊

ACS APPLIED NANO MATERIALS
卷 5, 期 3, 页码 3188-3193

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsanm.2c00389

关键词

cross-coupling; homogeneous catalysis; Pd nanoclusters; Pd(II) reduction; UV-vis spectroscopy; X-ray photoelectron spectroscopy; X-ray absorption spectroscopy

资金

  1. National Science Foundation Division of Chemistry [1800316]
  2. U.S. DOE [DE-AC02-06CH11357]
  3. Canadian Light Source
  4. Direct For Mathematical & Physical Scien
  5. Division Of Chemistry [1800316] Funding Source: National Science Foundation

向作者/读者索取更多资源

This research reports the formation of Pd-nanocluster catalysts and their involvement in ligand-free Suzuki-Miyaura reactions. The catalysts are formed by leaching spherical Pd(0) nanoparticles with an average diameter of about 3 nm, and they are soluble in water. The reduction of Pd(II) is induced by ethanol and enhanced by potassium hydroxide.
This Letter reports Pd-nanocluster catalysts and their formation in ligand-free Suzuki-Miyaura reactions with palladium(II) nitrate as a precatalyst. The catalysts are water-soluble neutral Pd tetramer and trimer in their singlet electronic states, as identified by UV-vis absorption spectroscopy, and are formed by leaching of spherical Pd(0) nanoparticles with an average diameter of about 3 nm. The Pd(0) nanoparticles are produced by reducing palladium(II) nitrate and characterized with transmission electron microscopy and Pd K-edge extended X-ray fine structure spectroscopy. The Pd(II) reduction is induced by ethanol, enhanced by potassium hydroxide, and monitored with X-ray photoelectron spectroscopy.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据