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

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

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.

Original language	English
Pages (from-to)	3188-3193
Number of pages	6
Journal	ACS Applied Nano Materials
Volume	5
Issue number	3
DOIs	https://doi.org/10.1021/acsanm.2c00389
State	Published - Mar 25 2022

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© 2022 American Chemical Society. All rights reserved.

Keywords

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

ASJC Scopus subject areas

General Materials Science

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10.1021/acsanm.2c00389

Cite this

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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",

author = "Priya Karna and Micheal Okeke and Meira, {Debora Motta} and Zou Finfrock and Yang, {Dong Sheng}",

year = "2022",

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doi = "10.1021/acsanm.2c00389",

language = "English",

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pages = "3188--3193",

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T1 - Water-Soluble Palladium Nanoclusters as Catalysts in Ligand-Free Suzuki-Miyaura Cross-Coupling Reactions

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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DO - 10.1021/acsanm.2c00389

M3 - Article

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JO - ACS Applied Nano Materials

JF - ACS Applied Nano Materials

IS - 3

ER -

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

Abstract

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Keywords

ASJC Scopus subject areas

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