Bidentate Acyclic Diamino Carbene-Stabilized Gold Nanoparticles from Symmetric and Asymmetric Gold(I) Complexes: Synthesis, Characterization, and Catalytic Activity.

Sophie R Thomas, Tristan T Y Tan, Guilherme M D M Rubio, Monnaya Chalermnon, Jia Min Chin, Michael R Reithofer

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Article in Inorganic chemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1 citing paper in PubMed.

Bidentate Acyclic Diamino Carbene-Stabilized Gold Nanoparticles from Symmetric and Asymmetric Gold(I) Complexes: Synthesis, Characterization, and Catalytic Activity.Inorganic chemistry · 2025
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6 authors.

Sophie R ThomasInstitute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria.ORCID 0000-0003-1110-430X

Tristan T Y TanInstitute of Material Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore 138634, Singapore.ORCID 0000-0001-5391-7232

Guilherme M D M RubioInstitute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria.

Monnaya ChalermnonInstitute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria.

Jia Min ChinDepartment of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria.ORCID 0000-0002-0540-1597

Michael R ReithoferInstitute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria.ORCID 0000-0002-6328-1896

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A series of gold nanoparticles (AuNPs) stabilized by bidentate acyclic diamino carbenes (ADCs) were synthesized via the reduction of dimeric gold(I) complexes. The resulting ADC-AuNPs were characterized by NMR spectroscopy, UV-vis spectroscopy, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA), revealing nanoparticles with a narrow size distribution and sizes ranging from 1.7 to 3.3 nm. This synthetic approach was extended to an asymmetric dinuclear ADC-gold(I) complex, affording slightly larger AuNPs (∼4 nm) upon reduction. The ADC-AuNPs with shorter linkers exhibited significant catalytic activity for the reduction of 4-nitrophenol, demonstrating a versatile and efficient route to catalytically active gold nanoparticles stabilized by both symmetric and asymmetric ADC ligands.

Identifiers

PMID40939637

DOI10.1021/acs.inorgchem.5c03050

PMCPMC12486202

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