chemiluminescence (CL) probe for singletoxygen ((1)O(2)). The design strategy for the probe is directed by the idea of photoinduced electron-transfer process and carried out through the incorporation of electron-rich tetrathiafulvalene unit into a reactive luminophore of anthracene specific for (1)O(2). Upon reaction with reactiveoxygen species (ROS), such as hydrogen peroxide, hypochlorite, superoxide