“…The bidentate diimine ligand 2-(pyridin-2-yl)benzo-Xazole (X = N-R, O, S) has a long history in coordination chemistry [20,21]. More recently, studies of Ru(bpy) 2 [15] and Re(CO) 3 L (L = Cl À , Br À , CF 3 SO À 3 , CH 3 CN) complexes with these ligands have focused on their structural, photoelectric, photophysical and redox properties with applications in photoelectric devices and supramolecular photochemistry in mind [22][23][24][25][26].…”