A single-state fluorescent with bright white-light emission in the solid station and aggregation-induced emission enhancement compound for Pd0 detection
A single-state fluorescent with bright white-light emission in the solid station and aggregation-induced emission enhancement compound for Pd0 detection
复制标题
固体站中具有明亮白光发射的单态荧光和用于 Pd0 检测的聚集诱导发射增强化合物
DOI：
10.1016/j.talanta.2017.11.002
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发表时间：
2017
期刊：
影响因子：
6.1
通讯作者：
Yu Cui
中科院分区：
文献类型：
--
作者：
Yan Zhang;Yexin Li;Xiaofeng Yang;Yiming Ding;Zongshi Zhao;Xiaolei Liu;Zhen Yang;Yu Cui
合成了一种以菲-咪唑为荧光核的单态分子化合物。该化合物在固体状态下发射白色光，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，固体分子间产生的激基缔合物引起的π-π堆积是导致发射白色光的主要原因。此外，在溶液状态下，随着不良溶剂分数的增加，化合物分子的旋转受到抑制，导致聚集诱导的发光增强。在Pd 0响应方面，化合物6对Pd 0有较灵敏的检测作用。发射峰从390 nm左右红移到425 nm左右，并在30 min内保持饱和。化合物6在pH 6-9范围内稳定，金属钯的检测限低至2.7 nM。
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 Pd0response, compound6had a sensitive detection of Pd0. The bathochromic shift of emission peak from around 390 nm to around 425 nm and remained saturated within 30 min. Compound6was stable at pH of 6–9 and the detection limit for metallic palladium was as low as 2.7 nM.