Issue 32, 2024

A molecular dynamics study on the ion-mediated self-assembly of monolayer-protected nanoclusters

Abstract

We studied the effects of metal and molecular cations on the aggregation of atomically precise monolayer-protected nanoclusters (MPCs) in an explicit solvent using atomistic molecular dynamics simulations. While divalent cations such as Zn2+ and Cd2+ promote aggregation by forming ligand–cation–ligand bridges between the MPCs, molecular cations such as tetraethylammonium and cholinium inhibit their aggregation by getting adsorbed into the MPC's ligand shell and reducing the ligand's motion. Here, we studied the aggregation of Au25(SR)18 nanoclusters with two types of ligands, para-mercaptobenzoic acid and D-penicillamine, as prototypical examples.

Graphical abstract: A molecular dynamics study on the ion-mediated self-assembly of monolayer-protected nanoclusters

Supplementary files

Article information

Article type
Paper
Submitted
12 Jun 2024
Accepted
15 Jul 2024
First published
17 Jul 2024

Nanoscale, 2024,16, 15141-15147

A molecular dynamics study on the ion-mediated self-assembly of monolayer-protected nanoclusters

V. Tiwari, A. Bhattacharyya and T. Karmakar, Nanoscale, 2024, 16, 15141 DOI: 10.1039/D4NR02427C

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