Application Values of Two Cu(II) Schiff Base Coordination Complexes on Blue Fluorescent Materials

Two Schiff base binuclear Cu(II) compounds, [Cu 2 (L) 2 ·(H 2 O) 2 ]·2DMF ( 1 ) together with its coordination polymer (CP) [Cu 2 (L) 2 ·(4,4′-bpy) 2 ] n ( 2 ) (H 2 L is 4-hydroxy-3-((2-hydroxy-5-mercaptobenzylidene)amino)-2H-chromen-2-one and 4,4′-bpy is 4,4′-bipyridine), were generated under an identical experimental environment in the absence and existence of auxiliary ligand 4,4′-bpy. Fluorescence spectroscopy testing shows that the ligand-based blue fluorescence emission offers potential for application as a blue photoluminescent material.