Issue 25, 2020

Homoleptic alkynyl-protected gold nanoclusters with unusual compositions and structures

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

Supplementary files

Article information

Article type
Communication
Submitted
22 شعبان 1441
Accepted
16 شوال 1441
First published
17 شوال 1441

Nanoscale, 2020,12, 13346-13350

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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