Sc(OTf) <sub>3</sub> -induced, selective removal of alkynyl ligands from heteroleptic Au <sub>13</sub> and Au <sub>38</sub> nanoclusters
The heteroleptic gold nanoclusters [Au<sub>13</sub>(dppe)<sub>5</sub>(PA)<sub>2</sub>]<sup>3+</sup> (dppe = 1,2-bis(diphenylphosphino)ethane; PA<sup>-</sup> = phenylacetylide) and [Au<sub>38</sub>(PPh<sub>3</sub>)<sub>4</sub>(PA)<sub>20</sub>]<sup>2+</sup> underwent the removal of PA<sup>-</sup> and an [Au(PA)<sub>2</sub>]<sup>-</sup> staple unit, respectively, <i>via</i> reaction with the Lewis acid scandium trifluoromethanesulfonate (Sc(OTf)<sub>3</sub>). The surface-exposed [Au<sub>37</sub>(PPh<sub>3</sub>)<sub>4</sub>(PA)<sub>18</sub>]<sup>3+</sup> obtained from the Au<sub>38</sub> nanocluster self-assembled into a dimer with two di-isocyanide linker molecules. This non-thermal strategy provides a foundation for the targeted synthesis of novel AuNCs with well-defined naked sites that can act as selective catalysts or building blocks for assembled materials.
Authors
- Tatsuya Tsukuda (ORCID: https://orcid.org/0000-0002-0190-6379)
- Shinjiro Takano (ORCID: https://orcid.org/0000-0001-9262-5283)
- Zengguang Huang (ORCID: https://orcid.org/0000-0001-9903-3504)
Institutions
- The University of Tokyo (JP)
Publication Details
- Journal
- Nanoscale
- Published
- 2025-12-03
- DOI
- https://doi.org/10.1039/d5nr03977k
- Primary Topic
- Nanocluster Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00