Crystal structure and electronic properties of a thiolate-protected Au24 nanocluster
2014; Royal Society of Chemistry; Volume: 6; Issue: 12 Linguagem: Inglês
10.1039/c4nr01350f
ISSN2040-3372
AutoresA. Das, Tao Li, Gao Li, Katsuyuki Nobusada, Chenjie Zeng, Nathaniel L. Rosi, Rongchao Jin,
Tópico(s)Alzheimer's disease research and treatments
ResumoSolving the total structures of gold nanoclusters is of critical importance for understanding their electronic, optical and catalytic properties. Herein, we report the X-ray structure of a charge-neutral Au24(SCH2Ph-tBu)20 nanocluster. This structure features a bi-tetrahedral Au8 kernel protected by four tetrameric staple-like motifs. Electronic structure analysis is further carried out and the optical absorption spectrum is interpreted. The Au24(SCH2Ph-tBu)20, Au23(S-c-C6H11)16 and Au25(SCH2CH2Ph)18 nanoclusters constitute the first crystallographically characterized "trio".
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