Au108S24(PPh3)16: A Highly Symmetric Nanoscale Gold Cluster Confirms the General Concept of Metalloid Clusters. Issue 1 (9th December 2016)

• Record Type: Journal Article
• Authors: Kenzler, Sebastian; Schrenk, Claudio; Schnepf, Andreas
• Is Part Of: Angewandte Chemie international edition. Volume 56:Issue 1(2017)
• Page Start: 393
• Page End: 396
• Publication Date: 2016-12-09
• Subjects: gold -- metalloid clusters -- nanoparticles -- thiol; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201609000
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: 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 ). Within1 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. Within1 the Au–Au distances get more molecular on going from the center to the ligand shell. Cluster1 represents novel structural motives in the field of metalloid gold clusters which also are partly typical for metal atoms in metalloid clusters: M n R m ( n > m ). Abstract : Gold rush : The reduction of (Ph3 P)AuCl with NaBH4 in the presence of HSC(SiMe3 )3 leads to the multishell metalloid gold cluster Au108 S24 (PPh3 )16 (1 ), in which novel structural motifs for metalloid gold clusters are realized that are partly typical for metal atoms in metalloid clusters: M n R m ( n > m ).