Synthesis and isolation of the molecule-like cluster Au38(PhCH2CH2S)24

Robert L. Donkers; Dongil Lee; Royce W. Murray

doi:10.1021/la035706w

Synthesis and isolation of the molecule-like cluster Au₃₈(PhCH₂CH₂S)₂₄

Robert L. Donkers, Dongil Lee, Royce W. Murray

Department of Chemistry

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

176 Citations (Scopus)

Abstract

The synthesis and characterization of phenylethanethiolate-coated monolayer protected clusters (MPCs) with Au₁₄₀ (average) and Au₃₈ cores are described. The latter 1.1 nm core diameter nanoparticles, whose Au₃₈(PhC2S)₂₄ composition was analytically established, are stable and isolable in relatively high purity and ∼200 mg quantities per reaction batch. Chemical shift effects in ¹H and ¹³C NMR spectra reveal the existence of either closely related Au₃₈ structures or differences between ligands on a given structure, or both. The Au₃₈(PhC2S)₂₄ MPCs undergo place exchange reactions with other thiolate ligands and, owing to their stability and ease of production, provide a gateway to other Au₃₈ MPCs with partially or completely different monolayer compositions.

Original language	English
Pages (from-to)	1945-1952
Number of pages	8
Journal	Langmuir
Volume	20
Issue number	5
DOIs	https://doi.org/10.1021/la035706w
Publication status	Published - 2004 Mar 2

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la035706w

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title = "Synthesis and isolation of the molecule-like cluster Au38(PhCH2CH2S)24",

abstract = "The synthesis and characterization of phenylethanethiolate-coated monolayer protected clusters (MPCs) with Au140 (average) and Au38 cores are described. The latter 1.1 nm core diameter nanoparticles, whose Au38(PhC2S)24 composition was analytically established, are stable and isolable in relatively high purity and ∼200 mg quantities per reaction batch. Chemical shift effects in 1H and 13C NMR spectra reveal the existence of either closely related Au38 structures or differences between ligands on a given structure, or both. The Au38(PhC2S)24 MPCs undergo place exchange reactions with other thiolate ligands and, owing to their stability and ease of production, provide a gateway to other Au38 MPCs with partially or completely different monolayer compositions.",

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AU - Donkers, Robert L.

AU - Lee, Dongil

AU - Murray, Royce W.

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N2 - The synthesis and characterization of phenylethanethiolate-coated monolayer protected clusters (MPCs) with Au140 (average) and Au38 cores are described. The latter 1.1 nm core diameter nanoparticles, whose Au38(PhC2S)24 composition was analytically established, are stable and isolable in relatively high purity and ∼200 mg quantities per reaction batch. Chemical shift effects in 1H and 13C NMR spectra reveal the existence of either closely related Au38 structures or differences between ligands on a given structure, or both. The Au38(PhC2S)24 MPCs undergo place exchange reactions with other thiolate ligands and, owing to their stability and ease of production, provide a gateway to other Au38 MPCs with partially or completely different monolayer compositions.

AB - The synthesis and characterization of phenylethanethiolate-coated monolayer protected clusters (MPCs) with Au140 (average) and Au38 cores are described. The latter 1.1 nm core diameter nanoparticles, whose Au38(PhC2S)24 composition was analytically established, are stable and isolable in relatively high purity and ∼200 mg quantities per reaction batch. Chemical shift effects in 1H and 13C NMR spectra reveal the existence of either closely related Au38 structures or differences between ligands on a given structure, or both. The Au38(PhC2S)24 MPCs undergo place exchange reactions with other thiolate ligands and, owing to their stability and ease of production, provide a gateway to other Au38 MPCs with partially or completely different monolayer compositions.

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Synthesis and isolation of the molecule-like cluster Au₃₈(PhCH₂CH₂S)₂₄

Abstract

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