Details

Autor(en) / Beteiligte

• Tian, Shubo
• Li, Yi-zhi
• Li, Man-bo
• Yuan, Jinyun
• Yang, Jinlong
• Wu, Zhikun
• Jin, Rongchao

Titel

Structural isomserism in gold nanoparticles revealed by X-ray crystallography

Ist Teil von

• Nature communications, 2015-10, Vol.6, p.8667

Ort / Verlag

London: Nature Publishing Group

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Revealing structural isomerism in nanoparticles using single-crystal X-ray crystallography remains a largely unresolved task, although it has been theoretically predicted with some experimental clues. Here we report a pair of structural isomers, Au38T and Au38Q , as evidenced using electrospray ionization mass spectrometry, X-ray photoelectron spectroscopy, thermogravimetric analysis and indisputable single-crystal X-ray crystallography. The two isomers show different optical and catalytic properties, and differences in stability. In addition, the less stable Au38T can be irreversibly transformed to the more stable Au38Q at 50 °C in toluene. This work may represent an important advance in revealing structural isomerism at the nanoscale.