At the room temperature, fluorescence intensities of these chemosensors in acetonitrile without transition metal ions were found to be very weak, due to the process of the efficient intramolecular photoinduced electron transfer (PET).

• 在室温下对其光物理性质的研究中发现，在没有加入过渡金属离子时，由于体系内存在有效的光诱导电子转移过程使得荧光团的荧光被淬灭。