Cation chemosensors have gained more and more attention because they possess
an important role in the chemical and biological fields. With the functionalization of
cation chemosensors, some special groups were introduced into the skeleton of cation chemosensors.
Photoswitchable materials can rearrange reversibly between two different
forms in response to light. In recent years, photoswitchable cation chemosensors have received
the interest of scientists due to their controllability with different light. It means
that recognization behaviors for the cations can be regulated upon irradiation with ultraviolet
or visible light. In this review, we summarize the recent advances of photoswitchable
cation chemosensors. The synthetic strategies to construct different classification
photoswitchable cation chemosensors are discussed in detail, the possible mechanism
for recognization behaviors is summarized, and the future direction of development for photoswitchable
cation chemosensors is predicted.
Keywords: Cation chemosensors, photoswitchable materials, functionalization, dithienylethene, spirooxazines, zobenzene.
Rights & PermissionsPrintExport