Synthesis and Fluorescent Characteristics Study of Two Novel Co(II) Complexes

In this work, two novel mixed-ligand CPs that has a compositions of [Co 2 (µ-Hdppa) 2 (phen) 2 (H 2 O) 2 ] ( 1 ) and {[Co(µ-Hdppa)(µ-4,4′-bipy)(H 2 O)]·H 2 O} n ( 2 ) is achieved through reaction of cobalt salts with the 5-(3,4-Dicarboxylphenyl)picolinic acid (H 3 dppa) with various N-donor co-ligands (1,10-phenanthroline (phen) for 1 and 4,4′-bipyridine (4,4′-bipy) for 2 ). The structures and characteristics of these two complexes were fully examined via IR, TGA, and SXRD. Furthermore, their superior blue fluorescence properties compared to the original ligands were confirmed through fluorescence spectroscopy. These two complexes prepared in this study have enriched the choices for blue fluorescent materials.