具有固态发白光单态荧光和聚集诱导发光增强化合物的 Pd 检测。
A single-state fluorescent with bright white-light emission in the solid station and aggregation-induced emission enhancement compound for Pd detection.
机构信息
School of Chemistry and Chemical Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, Shandong, China.
School of Chemistry and Chemical Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, Shandong, China; Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, Shandong, China.
出版信息
Talanta. 2018 Mar 1;179:177-185. doi: 10.1016/j.talanta.2017.11.002. Epub 2017 Nov 4.
A single-state molecule compound with phenanthrene-imidazole as fluorescent core was synthesized. The compound emitted white light in solid state and exhibited aggregation induced emission enhancement (AIEE) characteristic in solution state. From photophysical properties, it was presumably that π-π stacking caused by the excimer, which generated between solid molecules, led to the emitting white light. In addition, in the solution state, with the increasing fraction of the poor solvent, the rotation of the compound molecule was inhibited, which led to the luminescence enhancement induced by aggregation. In the aspect of Pd response, compound 6 had a sensitive detection of Pd. The bathochromic shift of emission peak from around 390nm to around 425nm and remained saturated within 30min. Compound 6 was stable at pH of 6-9 and the detection limit for metallic palladium was as low as 2.7nM.
合成了一种以菲啶-咪唑为荧光核的单态分子化合物。该化合物在固态下发射白光，并在溶液状态下表现出聚集诱导发射增强（AIEE）特性。从光物理性质来看，推测是由于固体分子之间的激基引起的π-π堆积导致了白光的发射。此外，在溶液状态下，随着不良溶剂比例的增加，化合物分子的旋转受到抑制，导致聚集诱导发光增强。在 Pd 响应方面，化合物 6 对 Pd 具有敏感的检测。发射峰从大约 390nm 到大约 425nm 的红移，并且在 30min 内保持饱和。化合物 6 在 pH 值为 6-9 时稳定，对金属钯的检测限低至 2.7nM。
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