Syntheses and crystal structures of [Ag123S35(StBU)50] and [Ag344S124(StBU)96]

(Figure Presented) On cores: Silver carboxylates react with a mixture of S(tBu)SiMe 3 and S(SiMe 3) 2 (in the presence of a bidentate phosphine ligand) to yield [Ag 123S 35(StBu) 50] (1) or [Ag 344S 124(StBu) 96] (2, see picture: blue Ag +, red S atoms of the StBu groups, yellow S 2, gray C) with maximum diameters of 2.5 (1) or 3.7 nm (2). These clusters can be described as core-shell particles with the {(Ag 2S) 35Ag 3} (1) and the {(Ag 2S) 124} (2) cores surrounded by shells of AgStBu units. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.