A new fluorescent sensor for the detection of pyrophosphate based on a tetraphenylethylene moiety

We have developed a new fluorescent sensor 1–2Zn based on a tetraphenylethylene (TPE) moiety for the detection of PPi. This TPE-based chemosensor showed ‘turn-on’ fluorescence emission according to the concentration of PPi. The fluorescence enhancement upon binding of PPi to 1–2Zn resulted from the restriction of intramolecular rotation of phenyl rings in 1–2Zn.