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SUMMARY:Site Selectivity in Ligand Exchange Reactions of Gold Nanoclusters
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20231031T160000
UID:2026-05-20-03-44-43@natsci.colostate.edu
DTSTAMP:20260520T034443
Description:Abstract: \n\nGold nanoclusters (AuNCs) are ideal models to st
 udy structure-property relationships due to their atomically precise compo
 sitions. Understanding this relationship is important for further explorat
 ions in photoluminescence and photocatalysis\, which are highly relevant t
 o industrial and academic work. The properties of AuNCs are mainly impacte
 d by their ligand shells\, the compositions of which are primarily modifie
 d in post-synthetic ligand exchange reactions. However\, ligand exchange r
 eactions currently have limited precision in their site selectivity. It is
  currently accepted that the ligand exchange reaction is primarily affecte
 d by the steric and electronic effects of the exchanging ligand\, however\
 , the impact of the ligand effects is not well understood. A recent report
 1 has provided insight on this topic through ligand exchange reaction on A
 u­25­(PET)­18­­‑­­ [PET= phenylethanethiolate] nanoclusters. In t
 his report\, a series of porphyrinthiol derivatives are used to investigat
 e steric and electronic effects in site-selectivity of ligand exchange rea
 ctions and the impacts they have on the structure of Au­25­ nanoclusters
 . Their methods will be discussed as well as the outlook of ligand effects
  in ligand exchange reactions.\n\n(1) Suzuki\, W.\; Takahata\, R.\; Chiga\
 , Y.\; Kikkawa\, S.\; Yamazoe\, S.\; Mizuhata\, Y.\; Tokitoh\, N.\; Terani
 shi\, T. Control over Ligand-Exchange Positions of Thiolate-Protected Gold
  Nanoclusters Using Steric Repulsion of Protecting Ligands. J Am Chem Soc 
 2022\, 144 (27)\, 12310–12320. https://doi.org/10.1021/jacs.2c03670. 4:0
 0 pm
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