LAUSR

Abstract Hexachlorocyclotriphosphazene (HCCP) contains six easily modifiable sites which can be substituted with multi-functional groups to afford various derivatives for broad applications in diverse fields, such as materials science, chemical and biological sensing and imaging, and catalysis. Particularly, when organic dyes such as borondipyrromethene, triarylamine, subphthalocyanines, naphthalimide, fluorene, tetraarylpyrazole, and coumarin are used as substituents that connect to the cyclotriphosphazene core directly or indirectly, different fluorescent derivatives are formed which show characteristic optical features. This review summarizes the preparation and potential application of these derivatives as fluorescent dyes, and points out their future perspectives in various disciplines.