14897-32-6Relevant articles and documents
Hydride, chloride, and bromide show similar electronic effects in the Au9(PPh3)83+ nanocluster
Cirri, Anthony,Hernández, Hanna Morales,Johnson, Christopher J.
, p. 1283 - 1285 (2020)
Recent experimental and computational results have suggested that a hydride bound to the Au9(PPh3)83+ gold nanocluster donates its electrons to the metal core, forming an 8-electron cluster. We present electronic absorption spectra of precisely mass-selected Au9(PPh3)83+ clusters featuring a surface hydride, chloride, or bromide. Comparison of these spectra shows that H-, Cl-, or Br- perturb the electronic structure of the Au9(PPh3)83+ core in similar ways. This suggests that hydride and halides play similar roles electronically in this cluster, and thus are either both metallic or both ligand-like.
Covalently Binding Atomically Designed Au9 Clusters to Chemically Modified Graphene
Bosch-Navarro, Concha,Laker, Zachary P. L.,Thomas, Helen R.,Marsden, Alexander J.,Sloan, Jeremy,Wilson, Neil R.,Rourke, Jonathan P.
supporting information, p. 9560 - 9563 (2015/08/11)
Atomic-resolution transmission electron microscopy was used to identify individual Au9 clusters on a sulfur-functionalized graphene surface. The clusters were preformed in solution and covalently attached to the surface without any dispersion or aggregation. Comparison of the experimental images with simulations allowed the rotational motion, without lateral displacement, of individual clusters to be discerned, thereby demonstrating a robust covalent attachment of intact clusters to the graphene surface.
