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

ABSTRACT: A trifluoromethanesulfonate (OTf) and tert-butylacetylene ( ^t BuC[triple bond, length as m-dash]C^-) co-protected silver nanocluster (NC), Ag₄₃( ^t BuC[triple bond, length as m-dash]C)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 ^t BuC[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.

SUBMITTER: Li T

PROVIDER: S-EPMC9054053 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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

Li Ting T Cui Xiaoqin X Liang Linfeng L Luo Cui C Li Huan H Zhang Xian-Ming XM

RSC advances 20200520 33

A trifluoromethanesulfonate (OTf) and tert-butylacetylene ( t BuC[triple bond, length as m-dash]C-) co-protected silver nanocluster (NC), Ag43( t BuC[triple bond, length as m-dash]C)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</su ...[more]

PMID: 35515431

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