Wang, Ji; Tong, Jin; Wang, Zhi-Feng; Yuan, Qing; Wang, Xia-Yan; Yu, Shu-Yan; Tang, Ben-Zhong published the artcile< Highly specific and selective fluorescent chemosensor for sensing of Hg(II) by NH-pyrazolate-functionalized AIEgens>, Recommanded Product: 1,2-Bis(4-bromophenyl)-1,2-diphenylethene, the main research area is pyrazolate selective fluorescent chemosensor environmental remediation luminescence; Aggregation-induced emission; Fluorescent chemosensor; Hg(II) ion; NH-Pyrazole; Turn-on fluorescence.
Luminescent organic mols. are of important realistic significance to the human health and ecol. environment due to their fascinating applications. Here we report the design and synthesis of luminescent organic-mols. by introducing two or four NH-pyrazolate groups as mercury-binding moieties to aromatic cores. Interestingly, the new aromatic tetraphenylene-bridged multi-NH-pyrazoles exhibit strong fluorescence in both aggregate and solid state and constitutes highly selective proof-of-concept luminescent sensor for Hg(II) ion among various competitive transition-metal ions in both organic and mixed solutions via metal-nitrogen binding. Especially, the present sensor including two NH-pyrazolyl groups showed an extremely high sensitivity with low limit of detection of 7.26 and 3.67 nM. The proposed design strategy provides a wide scope for the construction of unique turn-on sensors with substantial potential in the sense of heavy metal pollution in environmental water samples.
Analytica Chimica Acta published new progress about Aggregates. 184239-35-8 belongs to class bromides-buliding-blocks, and the molecular formula is C26H18Br2, Recommanded Product: 1,2-Bis(4-bromophenyl)-1,2-diphenylethene.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary