Abstract
Exciting research on gold–thiolate nanoclusters (AuSR NCs) has recently emerged thanks to the breakthroughs in their chemical synthesis and structural determination. Herein is presented representative work regarding X-ray spectroscopy studies of AuSR NCs, including clusters such as Au144, Au38, Au36, Au25, Au24Pt, and Au19. It is demonstrated that synchrotron-based X-ray absorption spectroscopy (XAS) and X-ray photoelectron spectroscopy (XPS) techniques are unique and powerful tools for probing the structural and electronic properties of AuSR NCs. Emphasis is placed on X-ray studies from a site- and element-specific perspective conducted under variable experimental conditions (e.g., solvation, temperature, etc.). For the convenience of researchers with little or no previous experience in X-ray spectroscopy, some background information on the theory of XAS and XPS techniques is also provided.
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