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Multi-state photoluminescent properties of an overcrowded alkene-based molecular motor in aggregates

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摘要 Photoisomerization and photoluminescence are two distinct energy dissipation path-ways in light-driven molecular motors.The photoisomerization properties of discrete molecular motors have been well established in solution,but their photoluminescent properties have been rarely reported-especially in aggregates.Here,it is shown that an overcrowded alkene-based molecular motor exhibits distinct dynamic prop-erties in solution and aggregate states,for example,gel and solid states.Despite the poor emissive properties of molecular motors in solution,a bright emission is observed in the aggregate states,including in gel and the crystalline solid.The emis-sion wavelength is highly dependent on the nature of the supramolecular packing and order in the aggregates.As a result,the fluorescent color can be readily tuned reversibly via mechanical grinding and vapor fuming,which provides a new platform for developing multi-stimuli functional materials.
出处 《Aggregate》 EI CAS 2024年第5期1-8,共8页 聚集体(英文)
基金 National Natural Science Foundation of China,Grant/Award Numbers:22220102004,22025503 Shanghai Municipal Science and Technology Major Project,Grant/Award Number:2018SHZDZX03 Innovation Program of Shanghai Municipal Education Commission,Grant/Award Number:2023ZKZD40 Fundamental Research Funds for the Central Universities,the Program of Introducing Talents of Discipline to Universities,Grant/Award Number:B16017 Science and Technology Commission of Shanghai Municipality,Grant/Award Number:21JC1401700 Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study,Grant/Award Number:SN-ZJU-SIAS-006 China Scholarship Council,Grant/Award Number:202006745016 Dutch Ministry of Education,Culture and Science,Grant/Award Number:024.001.035。
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