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

Priya Karna; Micheal Okeke; Debora Motta Meira; Zou Finfrock; Dong Sheng Yang

doi:10.1021/acsanm.2c00389

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

Priya Karna
, Micheal Okeke
, Debora Motta Meira
, Zou Finfrock
, Dong Sheng Yang

Producción científica: Article › revisión exhaustiva

7 Citas (Scopus)

Resumen

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.

Idioma original	English
Páginas (desde-hasta)	3188-3193
Número de páginas	6
Publicación	ACS Applied Nano Materials
Volumen	5
N.º	3
DOI	https://doi.org/10.1021/acsanm.2c00389
Estado	Published - mar 25 2022

Nota bibliográfica

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

Financiación

We acknowledge financial support from the National Science Foundation Division of Chemistry (Chemical Structure, Dynamics, and Mechanisms; Grant 1800316). This research used resources of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, and was supported by the U.S. DOE under Contract DE-AC02-06CH11357 and the Canadian Light Source and its funding partners. The authors also thank Dali Qian and Jillian Cramer for their help with TEM.

Financiadores	Número del financiador
Argonne National Laboratory
National Science Foundation Division of Chemistry
National Science Foundation Office of International Science and Engineering
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China	1800316
U.S. Department of Energy Oak Ridge National Laboratory U.S. Department of Energy National Science Foundation National Energy Research Scientific Computing Center	DE-AC02-06CH11357

ASJC Scopus subject areas

General Materials Science

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title = "Water-Soluble Palladium Nanoclusters as Catalysts in Ligand-Free Suzuki-Miyaura Cross-Coupling Reactions",

abstract = "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.",

keywords = "Pd nanoclusters, Pd(II) reduction, UV-vis spectroscopy, X-ray absorption spectroscopy, X-ray photoelectron spectroscopy, cross-coupling, homogeneous catalysis",

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AU - Karna, Priya

AU - Okeke, Micheal

AU - Meira, Debora Motta

AU - Finfrock, Zou

AU - Yang, Dong Sheng

PY - 2022/3/25

Y1 - 2022/3/25

N2 - 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.

AB - 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.

KW - Pd nanoclusters

KW - Pd(II) reduction

KW - UV-vis spectroscopy

KW - X-ray absorption spectroscopy

KW - X-ray photoelectron spectroscopy

KW - cross-coupling

KW - homogeneous catalysis

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

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Financiación

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