6533b824fe1ef96bd1280de7
RESEARCH PRODUCT
Chemically Selective Imaging of Individual Bonds through Scanning Electron Energy-Loss Spectroscopy : Disulfide Bridges Linking Gold Nanoclusters
Karolina SokołowskaZhongyue LuanEero HulkkoChristoph RameshanNoelia BarrabésVartkess A. ApkarianTanja Lahtinensubject
kemialliset sidoksetdisulfidessulfurscanning transmission electron microscopyelektronimikroskopiananohiukkasetgold nanoclustersdescription
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. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 |