Silver Clusters: Synthesis, Unique Fluorescence Aggregation-Redshift Phenomenon, and Sensing Applications for Br−/I−. (IMAGE)

Tsinghua University Press

Silver Clusters: Synthesis, Unique Fluorescence Aggregation-Redshift Phenomenon, and Sensing Applications for Br−/I−.

Caption

The controllable synthesis of highly stable Ag56 clusters was achieved using 4-vinylbenzoic acid and tert-butyl mercaptan as ligands by precisely regulating reaction parameter. The intermediates Ag₂₀, Ag₃₁, Ag₃₂, Ag₃₀-bpbenz, Ag₃₁-bpe, and Ag₅₆ nanoclusters exhibit a unique fluorescence aggregation-redshift phenomenon due to the π–π interactions of the ligands; notably, the Ag₅₆ nanoclusters can be used as near-infrared fluorescence sensors for detecting Br⁻ and I⁻.

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Polyoxometalates, Tsinghua University Press

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