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Assembly of High-Nuclearity Sn26, Sn34-Oxo Clusters: Solvent Strategy and Inorganic Sn Incorporation

Abstract

A series of unprecedented high-nuclearity tin-oxo nanoclusters (up to Sn34) with structural diversity have been obtained. The characteristics of applied solvents showed great influence on the assembly of these Sn-O clusters. Pure alcohol environments only gave rise to small clusters of Sn6; whilst the introduction of water significantly increased the nuclearity to Sn26, which greatly exceeds those of the known tin-oxo clusters (≤ 14); the use of aprotic CH3CN finally produced the largest Sn34 to date. Except for the nuclearity breakthrough, the obtained tin-oxo clusters also present new structural types that are not found in the previous reports, including the layered nanorod-like structure in Sn26 and the cage-dimer structure in Sn34. Thereinto, the layered Sn26 clusters represent good molecular models for the SnO2 materials. Moreover, electrode derived from TOC-17 with {Sn26} core shows better electrocatalytic CO2 reduction activity than that from TOC-18 with Sn34. This work not only provides efficient methodology for the rational assembly of high-nuclearity Sn-O clusters, but also extends their potential applications in energy conversion.

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Publication details

The article was received on 22 May 2019, accepted on 12 Aug 2019 and first published on 12 Aug 2019


Article type: Edge Article
DOI: 10.1039/C9SC02503K
Chem. Sci., 2019, Accepted Manuscript
  • Open access: Creative Commons BY license
    All publication charges for this article have been paid for by the Royal Society of Chemistry

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    Assembly of High-Nuclearity Sn26, Sn34-Oxo Clusters: Solvent Strategy and Inorganic Sn Incorporation

    Y. Zhu, L. Zhang and J. Zhang, Chem. Sci., 2019, Accepted Manuscript , DOI: 10.1039/C9SC02503K

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