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A series of diketopyrrolopyrrole (DPP) derivatives DPPPHs based on phenylhydrazone group were designed and synthesized. The presence of nitro moiety at ortho-position of phenylhydrazone in o-NO 2 -DPPPH and o,p-di-NO 2 -DPPPH significantly altered the electronic properties through intramolecular hydrogen bonding. Among these receptors, p-NO 2 -DPPPH showed excellent selectivity...
A new colorimetric and on–off fluorescence sensor based on diketopyrrolopyrrole (DPP) was synthesized for detection of fluoride anion. The sensor displayed a rapid responsivity and high selectivity and sensitivity toward F− over other anions, with a significant 267nm bathochromic shift of the absorption maximum, and the new peak was located in the near-infrared region. Meanwhile, it could be easily...
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