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Multishell EXAFS Fitting Analysis of a Compositionally Precise Thiolate-Gold Nanocluster

  • Daniel M. Chevrier (a1), Amares Chatt (a1), Peng Zhang (a1), Chenjie Zeng (a2) and Rongchao Jin (a2)...
Abstract

Thiolate-gold nanoclusters exhibit unique optical, magnetic and chiral properties, which are attractive for novel applications in nanotechnology. A fundamental challenge facing these nanomaterials is being able to study and understand their physical properties in various experimental conditions. To overcome this, extended X-ray absorption fine structure (EXAFS) spectroscopy can be employed to probe the Au local structure of thiolate-gold nanoclusters in a variety of conditions, providing valuable structural information from multiple bonding environments (i.e. metal-metal and metal-ligand interactions). This study discusses a methodology for conducting a multishell EXAFS fitting analysis that can be implemented for thiolate-gold nanocluster systems. Specifically, experimental and simulated EXAFS data for Au36(SR)24 nanoclusters are examined with a total of 5 scattering paths fitted to the experimental data.

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  • EISSN: 1946-4274
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