Au108 S24 (PPh3 )16 : A Highly Symmetric Nanoscale Gold Cluster Confirms the General Concept of Metalloid Clusters
| Autor: | Sebastian Kenzler, Claudio Schrenk, Andreas Schnepf |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Gold cluster
Materials science 010405 organic chemistry Ligand Inorganic chemistry Shell (structure) General Chemistry 010402 general chemistry Block (periodic table) 01 natural sciences Catalysis 0104 chemical sciences Metal Crystallography Octahedron visual_art visual_art.visual_art_medium Cluster (physics) Metalloid |
| Zdroj: | Angewandte Chemie International Edition. 56:393-396 |
| ISSN: | 1433-7851 |
| DOI: | 10.1002/anie.201609000 |
| Popis: | The reduction of (Ph3 P)AuCl with NaBH4 in the presence of HSC(SiMe3 )3 , leads to one of the largest metalloid gold clusters: Au108 S24 (PPh3 )16 (1). Within 1 an octahedral Au44 core of gold atoms arranged as in Au metal is surrounded by 48 oxidized Au atoms of an Au48 S24 shell, a novel building block in gold chemistry. The protecting Au48 S24 shell is completed by additional 16 Au(PPh3 ) units, leading to a complete protection of the gold core. Within 1 the Au-Au distances get more molecular on going from the center to the ligand shell. Cluster 1 represents novel structural motives in the field of metalloid gold clusters which also are partly typical for metal atoms in metalloid clusters: Mn Rm (n>m). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text