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Issue 25, 2020
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Homoleptic alkynyl-protected gold nanoclusters with unusual compositions and structures

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Abstract

We report two novel homoleptic alkynyl-protected gold nanoclusters, which were synthesized by direct reduction of AuC[triple bond, length as m-dash]CR. Single-crystal X-ray structural analysis reveals that they have compositions of Au42(C[triple bond, length as m-dash]CC6H4-2-CF3)22 (1) and Au50(C[triple bond, length as m-dash]C6H4-3-F)26 (2), respectively. Cluster 2 is the first Au50 nanocluster, and the metal-to-ligand ratios of 1 and 2 are different from those of known Aun(SR)m or Aux(C[triple bond, length as m-dash]CR)y nanoclusters. In addition, the metal kernels of these two clusters are built up unprecedented units. This work offers further insights into the synthesis of all-alkynyl-protected gold nanoclusters via a direct reduction method.

Graphical abstract: Homoleptic alkynyl-protected gold nanoclusters with unusual compositions and structures

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Supplementary files

Article information


Submitted
15 Apr 2020
Accepted
08 Jun 2020
First published
09 Jun 2020

Nanoscale, 2020,12, 13346-13350
Article type
Communication

Homoleptic alkynyl-protected gold nanoclusters with unusual compositions and structures

Z. Guan, F. Hu, J. Li, Z. Liu and Q. Wang, Nanoscale, 2020, 12, 13346
DOI: 10.1039/D0NR02986F

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