4081-37-2Relevant academic research and scientific papers
Combining the Single-Atom Engineering and Ligand-Exchange Strategies: Obtaining the Single-Heteroatom-Doped Au16Ag1(S-Adm)13 Nanocluster with Atomically Precise Structure
Kang, Xi,Xiong, Lin,Wang, Shuxin,Pei, Yong,Zhu, Manzhou
, p. 335 - 342 (2018)
Obtaining cognate single-heteroatom doping is highly desirable but least feasible in the research of nanoclusters (NCs). In this work, we reported a new Au16Ag1(S-Adm)13 NC, which is synthesized by the combination of single-atom engineering and ligand-exchange strategies. This new NC is so far the smallest crystallographically characterized Au-based NC protected by thiolate. The Au16Ag1(S-Adm)13 exhibited a tristratified Au3-Au2Ag1-Au1 kernel capped by staple-like motifs including one dimer and two tetramers. In stark contrast to the size-growth from Au18(S-C6H11)14 to Au21(S-Adm)15 via just the ligand-exchange method, combining single Ag doping on Au18(S-C6H11)14 resulted in the size-decrease from Au17Ag1(S-C6H11)14 to Au16Ag1(S-Adm)13. DFT calculations were performed to both homogold Au18 and single-heteroatom-doped Au17Ag1 to explain the opposite results under the same ligand-exchange reaction. Our work is expected to inspire the synthesis of new cognate single-atom-doped NCs by combining single-atom engineering and ligand-exchange strategies and also shed light on extensive understanding of the metal synergism effect in the NC range.
Spectral correlation in the adsorption of aliphatic mercaptans on silver and gold surfaces: Raman spectroscopic and computational study
Cho, Seung Il,Park, Eun Sun,Kim, Kwan,Kim, Myung Soo
, p. 83 - 92 (2007/10/03)
Spectral shifts of the v(CS) vibrations of several aliphatic mercaptans adsorbed on the Ag and Au electrode surfaces were measured with the surface- enhanced Raman scattering. Influence of the chemisorption mechanism on the spectral shift was investigated
