Chemically Selective Imaging of Individual Bonds through Scanning Electron Energy-Loss Spectroscopy: Disulfide Bridges Linking Gold Nanoclusters

Karolina Sokołowska, Zhongyue Luan, Eero Hulkko, Christoph Rameshan, Noelia Barrabés, Vartkess A. Apkarian, Tanja Lahtinen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

As proof-of-principle of chemically selective, spatially resolved imaging of individual bonds, we carry out electron energy-loss spectroscopy in a scanning transmission electron microscopy instrument on atomically precise, thiolate-coated gold nanoclusters linked with 5,5'-bis(mercaptomethyl)-2,2'-bipyridine dithiol ligands. The images allow the identification of bridging disulfide bonds (R-S-S-R) between clusters, and X-ray photoelectron spectra support the finding.

Original languageEnglish
Pages (from-to)796-799
Number of pages4
JournalThe journal of physical chemistry letters
Volume11
Issue number3
DOIs
Publication statusPublished - 6 Feb 2020
MoE publication typeA1 Journal article-refereed

Fingerprint Dive into the research topics of 'Chemically Selective Imaging of Individual Bonds through Scanning Electron Energy-Loss Spectroscopy: Disulfide Bridges Linking Gold Nanoclusters'. Together they form a unique fingerprint.

  • Cite this