Analytically useful blue chemiluminescence from a water-soluble iridium(iii) complex containing a tetraethylene glycol functionalised triazolylpyridine ligand

We examine [Ir(df-ppy) 2 (pt-TEG)] + as the first highly water soluble, blue-luminescent iridium(iii) complex for chemiluminescence detection. Marked d ifferences in selectivity were observed between the new complex and the conventional [Ru(bpy) 3 ] 2+ reagent, which will enable this mode of detection to be extended to new areas of application.