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Doctoral thesis
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Ligand exchange reactions on thiolate-protected gold nanoclusters

Contributors

Wang, Yanan

Directors

Buergi, Thomas

Imprimatur date

2021-12-16

Defense date

2021-12-09

Abstract

Precise thiolate-protected gold nanocluster, as an ultra-small and multifunctional material, has attracted large interest. The flexibility of gold-sulfur interface forms the basis for the further modification of nanocluster, especially for the ligand exchange reactions (LERs). As a post-synthesis method, LERs offers huge, desired possibilities to the nanoclusters. In this thesis, we investigate the stereoelectronic properties from ligand and whole cluster during exchange process. As a global effect, the stereoelectronic property will induce significant discrimination to the LERs. In addition, ligand exchange induced transformation of nanocluster also involved. Apart from the exchange between cluster and free ligand, we also demonstrated the intercluster ligand exchange with dithiol ligand. We proved that the dithiol ligand didn't desorb from the cluster during the intra/inter dynamic process. More interesting, the Intra/inter dynamic process with chiral ligand will lead to amplification of enantiomeric excess of the cluster system at high temperature.

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

WANG, Yanan. Ligand exchange reactions on thiolate-protected gold nanoclusters. Doctoral Thesis, 2021. doi: 10.13097/archive-ouverte/unige:158162

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Thesis

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Technical informations

Creation

19/01/2022 12:05:00

First validation

19/01/2022 12:05:00

Update

04/04/2025 13:15:51

Status update

21/03/2024 11:38:58

Last indexation

13/05/2025 18:52:51
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