Photochemistry of phenothiazine in benzene and cyclohexane

IN the last few years phenothiazine(PTH)and its derivatives have captured much attention inthe fields of medicines,biology,and microelectronic materials due to their ability to ef-ficiently photosensitize acid production in the presence of vicinal dibromides and hence tochange the solubilization of polymer films.The photophysical and photochemical properties re-lated to the processes have been studied.Monica Barra et al.found that the triplet lifetime