Recent research advances in colloidal metal nanoparticles (e.g. gold, silver, and bimetal) have led to atomically precise nanoparticles. This talk will present the structure and properties of magic-sized Aun(SR)m nanoparticles (where, SR = thiolate) ranging from Au18(SR)14 to Au246(SR)80 and the important implications for a number of fundamentally important issues in nanoscience that have long been tough to tackle if without atomically precise nanoparticles. Critical issues are such as the nucleation and growth patterns of nanoparticles, metallic bond formation, quantum size effects, nano-SAM structure, mechanism of nanoparticle assembly, crystal structure control, structural isomerism and the origins of chirality. The perfect Aun(SR)m nanoparticles serve as paradigm systems to provide unprecedented opportunities not only for deeper understanding of many of the fundamental issues of nanoparticles but also for catalytic and energy conversion applications.

Atomically precise metal nanoparticles: Fundamentals and opportunities

254th National Meeting (2017)

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