[Synthesis, characterization and luminescence properties of coordination compounds of rare earth with p-tert-butyl-calix[8] arene].
Fourteen solid coordination compounds of rare earth(Sm3+, Eu3+, Tb3+ and Dy3+ and Ln3+ (La3+, Gd3+ and Y3+)-doped Tb3+ with p-tert-butyl-calix[8] arene (LH8) have been synthesized and characterized. Elemental analysis, rare erth complexometry, 1H NMR spectra and TG-DTA have been studied. The results suggest that the complexes have the composition of [RE2 (LH2)(DMSO)5]DMSO, [RE2 (LH2) (DMF)5] 2DMF, [LnTb (LH2) (DMSO)5] DMSO and [LnTb (LH2) (DMF)5] 2DMF respectively. Fluorescence spectrum suggests that the Tb3+ complexes have characteristic luminescence, and its fluorescence intensity is enhanced after doping with La3+, Gd3+ and Y3+. The influence of the doping ions and two neutral ligands (DMSO and DMF) has also been discussed. In addition, the fluorescence lifetime of some complexes has been investigated.
Yan
Lai
L
The College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China.
Zhao
Yong-Liang
YL
Zhao
Feng-Ying
FY
Wang
Ling-Xuan
LX
Ye
Jian-Ping
JP