Terminal group effects on the fluorescence spectra of europium(III) nitrate complexes with a family of amide-based 2,3-dihydroxynaphthalene derivatives.
Three ligands 2,2'-[2,3-naphthylenebis(oxy)]-bis(N,N-diethyl(acetamide)) (L(a)), 2,2'-[2,3-naphthylenebis(oxy)]-bis(N,N-diisopropyl(acetamide)) (L(b)) and 2,2'-[2,3-naphthylenebis(oxy)]-bis(N,N-dibutyl(acetamide)) (L(c)) and their europium(III) nitrate complexes were synthesized. The complexes were characterized by elemental analysis, IR, fluorescence spectroscopy and conductivity. The europium atoms are coordinated by O-atoms from CO, Ar-O-C. With the difference of the ligands, the solid fluorescent intensities of the Eu complexes vary regularly. Some factors that influencing the fluorescent intensity were discussed.
Lei
Ke-Wei
KW
Department of Chemistry and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Liu
Wei-Sheng
WS
D000577:Amides / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D015394:Molecular Structure; D009284:Naphthols / Q000737:chemistry*; D009566:Nitrates / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared
D000577:Amides; D009284:Naphthols; D009566:Nitrates; D005063:Europium; C053499:2,3-dihydroxynaphthalene