基于四齿螯合骨架的明亮、多重响应、天蓝色的铂(II)荧光粉。
Bright, Multi-responsive, Sky-Blue Platinum(II) Phosphors Based on a Tetradentate Chelating Framework.
机构信息
Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, P.R. China.
Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
出版信息
Angew Chem Int Ed Engl. 2017 Jul 24;56(31):9160-9164. doi: 10.1002/anie.201705785. Epub 2017 Jun 27.
A new class of highly efficient and stable, blue-phosphorescent Pt complexes based on a tetradentate chelating framework has been found to exhibit highly sensitive and reversible responses to multiple external stimuli including temperature, pressure, and UV irradiation with distinct phosphorescent color switching-from blue to red or white. Intermolecular excimer formation is the main origin of this intriguing multi-response phenomenon. Highly efficient singlet-oxygen sensitization by the Pt compounds yields UV-light-induced phosphorescence enhancement and color switching.
现已发现一类新型高效且稳定的基于四齿螯合框架的蓝色磷光 Pt 配合物，其对多种外部刺激（包括温度、压力和紫外光辐射）表现出高度灵敏且可逆的响应，同时伴有磷光颜色的明显转变——从蓝色变为红色或白色。这种有趣的多重响应现象主要源于分子间激基缔合物的形成。Pt 化合物具有高效的单线态氧敏化作用，可实现紫外光诱导的磷光增强和颜色转变。
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