Oligomeric Gold Clusters with Vertex-Sharing Bi- and Triicosahedral Structures
Citations Over TimeTop 13% of 2007 papers
Abstract
We present density functional studies of the geometric and electronic structures of a gold cluster compound [Au25(PH3)10(SCH3)5Cl2]2+. The cluster has a unique geometric structure consisting of two icosahedral Au13 clusters bridged by methanethiolates sharing a vertex gold atom and terminated by chlorine atoms. This structure is very close to the biicosahedral gold cluster [Au25(PPh3)10(SC2H5)5Cl2]2+ reported in a recent experiment. We further demonstrate that a vertex-sharing triicosahedral gold cluster [Au37(PH3)10(SCH3)10Cl2]+ is also achieved through bridging with the methanethiolates. A comparison between the absorption spectra of the bi- and triicosahedral clusters shows that the new electronic levels due to each oligomeric structure appear sequentially, whereas other electronic properties remain almost unchanged compared to the individual icosahedral Au13 cluster.
Related Papers
- → Large-Sized Aun– Core–Shell Clusters (n = 61–66): Enduring Structure of the Icosahedral Au13 Core(2022)3 cited
- → Exploration of the Atomic Pathway of Seed-Mediated Growth from Icosahedral [Au25(SR)18]− to Bi-Icosahedral Au38(SR)24 and Au44(SR)26 Clusters Based on the 2e– Hopping Mechanism(2023)1 cited
- → Computational Exploration of the Nanogold Energy Landscape(2009)2 cited
- → Gold Covalently Bound to Antibodies(1995)1 cited
- → Gold Cluster Crystals(2000)