A triflate and alkynyl protected Ag43 nanocluster with a passivated surface

Ting Li; Xiaoqin Cui; Linfeng Liang; Cui Luo; Huan Li; Xian-Ming Zhang

doi:10.1039/D0RA01244K

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A triflate and alkynyl protected Ag₄₃ nanocluster with a passivated surface†

Ting Li,‡^a Xiaoqin Cui,‡^b Linfeng Liang,

^b Cui Luo,^b Huan Li

*^b and Xian-Ming Zhang*^ab

Author affiliations

* Corresponding authors

^a School of Chemistry & Material Science, Shanxi Normal University, Linfen, China
E-mail: xmzhang@sxu.edu.cn

^b Institute of Crystalline Materials, Shanxi University, Taiyuan, China
E-mail: 59584340@sxu.edu.cn

Abstract

A trifluoromethanesulfonate (OTf) and tert-butylacetylene (^tBuC [triple bond, length as m-dash] C⁻) co-protected silver nanocluster (NC), Ag₄₃(^tBuCC)₂₄(CF₃SO₃)₈ (Ag₄₃), was synthesized and characterized. Single crystal X-ray diffraction analysis revealed its total structure. 43 Ag atoms are arranged into a three-concentric-shell Ag@Ag₁₂@Ag₃₀ structure. Both OTf and ^tBuC [triple bond, length as m-dash] C⁻ ligands bonded with Ag atoms in a μ₃ mode. The application of Ag₄₃ as a catalyst for the reaction of silane with alcohol or H₂O indicated that the surface ligands had a profound passivation effect, which significantly influenced the reactivity and selectivity.

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Article information

DOI: https://doi.org/10.1039/D0RA01244K
Article type: Paper
Submitted: 09 Feb 2020
Accepted: 13 May 2020
First published: 20 May 2020
This article is Open Access

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RSC Adv., 2020,10, 19397-19400

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A triflate and alkynyl protected Ag₄₃ nanocluster with a passivated surface

T. Li, X. Cui, L. Liang, C. Luo, H. Li and X. Zhang, RSC Adv., 2020, 10, 19397 DOI: 10.1039/D0RA01244K

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