Аннотация:The stable and efficient photochromic and photoswitchable molecular
systems designed from spirooxazines are of increasing scientific and practical interest
because of their present and future applications in advanced technologies. Among these
compounds, chelating spironaphthoxazines have received widespread attention due to
their efficient optical response after complexation with some metal ions being of
biomedical interest and environmental importance, as well as their good cycle
performance and high reliability, especially by metal ion sensing. In this mini-review,
we summarize our results in the design of novel photoswitchable chelating
spironaphthoxazines with specific substituents in their naphthoxazine or indoline ring
systems in view of recent progress in the development of such molecular systems and
their applications as metal ion sensors. The design, synthesis methods, and
photoresponse of such spirooxazine derivatives relevant to their applications, as well as
quantum-chemical calculations for these compounds, are presented. Examples of various
design concepts are discussed, such as sulfobutyl, hydroxyl, benzothiazolyl, or ester and
carboxylic acid as substituents in the chelating spironaphthoxazine molecules. Further developments and improvements of this
interesting and promising kind of molecular photoswitches are outlined.
