Synthesis and luminescence properties of lanthanide complexes with a new tripodal ligand featuring N-thenylsalicylamide arms.
To explore the relationship between the structure of the ligands and the luminescent properties of the lanthanide complexes, luminescent lanthanide complexes of a new tripodal ligand, featuring N-thenylsalicylamide arms, were synthesized and characterized by elemental analysis, IR and TGA measurements. Photophysical properties of the complexes were studied by means of UV - visible absorption and steady-state luminescence spectroscopy. The results of UV - vis spectra indicate that metal binding does not disturb the electronic structure of the ligand. Excited-state luminescence lifetimes and quantum yields of the complexes were determined. The photoluminescence analysis suggested that there is an efficient ligand - Ln(III) energy transfer for the Tb(III) complex, and the ligand is an efficient 'antenna' for Tb(III). From a more general perspective, the results demonstrated the potential application of the lanthanide complex as luminescent materials in material chemistry.
School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, People's Republic of China. songxq@lzjtu.cn
Xue-Qin
XQ
Song
Qing-Fang
QF
Zheng
Li
L
Wang
Wei-Sheng
WS
Liu
D060326:Chemistry Techniques, Synthetic / Q000379:methods*; D004735:Energy Transfer; D028581:Lanthanoid Series Elements / Q000138:chemical synthesis / Q000737:chemistry*; D008024:Ligands; D049449:Luminescence; D015394:Molecular Structure; D009566:Nitrates / Q000737:chemistry; D012457:Salicylamides / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013725:Terbium / Q000737:chemistry / Q000378:metabolism
D028581:Lanthanoid Series Elements; D008024:Ligands; D009566:Nitrates; D012457:Salicylamides; D013725:Terbium; C031060:salicylamide