Issue 23, 2024

[Au9Ag6(C[triple bond, length as m-dash]CR)10(DPPM)2Cl2](PPh4): a four-electron cluster with a bi-decahedral twisted metal core

Abstract

The assembly of cluster units in a distinct manner can give rise to nanoclusters exhibiting unique geometrical structures and properties. Herein, we present a one-pot synthesis and structural characterization of a AuAg alloy cluster, [Au9Ag6(C[triple bond, length as m-dash]CR)10(DPPM)2Cl2](PPh4), denoted as Au9Ag6 (where HC[triple bond, length as m-dash]CR is 3,5-bis(trifluoromethyl)phenylacetylene, and DPPM is bis(diphenylphosphino)methane). Single-crystal X-ray diffraction data analysis reveals that Au9Ag6 features a distinctive Au7Ag6 bi-decahedral core, formed by a twisted assembly of two Au4Ag3 decahedra sharing one vertex. The Au4Ag3 building blocks are bridged by two gold atoms on opposite sides of the bi-decahedral core. The Au9Ag6 cluster is monoanionic and it is stabilized by two chloride, two DPPM and ten alkynyl ligands. This cluster represents the first instance of a cluster of clusters built upon decahedral units.

Graphical abstract: [Au9Ag6(C [[triple bond, length as m-dash]] CR)10(DPPM)2Cl2](PPh4): a four-electron cluster with a bi-decahedral twisted metal core

Supplementary files

Article information

Article type
Paper
Submitted
04 Apr 2024
Accepted
06 Mai 2024
First published
07 Mai 2024
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2024,16, 11090-11095

[Au9Ag6(C[triple bond, length as m-dash]CR)10(DPPM)2Cl2](PPh4): a four-electron cluster with a bi-decahedral twisted metal core

G. Deng, T. Ki, S. Yoo, X. Liu, K. Lee, M. S. Bootharaju and T. Hyeon, Nanoscale, 2024, 16, 11090 DOI: 10.1039/D4NR01471E

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