A novel long-wavelength fluorescent probe for discrimination of different palladium species based on Pd-catalyzed reactions

作者：Yu, Ting; Yin, Guoxing; Yin, Peng^*; Zeng, Ying; Li, Haitao^*; Zhang, Youyu; Yao, Shouzhuo

来源：RSC Advances, 2017, 7(40): 24822-24827.

DOI：10.1039/c7ra01731f

• LOW DETECTION LIMIT
• RED
• SPECTROMETRY
• CHROMOPHORES
• PLATINUM
• CELLS

We have synthesized a novel long-wavelength fluorescent probe MFC for detection of palladium (Pd-0). This probe not only shows high selectivity for palladium, but also could quickly discriminate different palladium species (Pd-0, Pd2+, Pd4+) in phosphate buffered solution. After the reaction with Pd(PPh3)(4), the UV absorption of the probe MFC shifts from 334 nm to 594 nm within a few minutes. The probe MFC conjugated with alkyl carbamate, which destroys the principle of intramolecular charge transfer (ICT) and shows weak fluorescence. Based on the Pd-0-catalyzed Tsuji-Trost deallylation reaction, the fluorogen was released and the fluorescence intensity at 612 nm was observed with 13-fold enhancement along with an obvious color change from yellow to purple with low detection limit.

• 出版日期2017
• 单位湖南师范大学