[Study on spectroscopic properties of rare earth complexes with poly (N-vinylacetamide)].
Terbium-lanthanum (or gadolinium)-poly(N-vinylacetamide) complexes were synthesized and characterized by UV-Vis absorption spectroscopy, FTIR, XPS and fluorescence spectroscopy. The results of UV-Vis, FTIR and XPS suggested that terbium and lanthanum (or gadolinium) ions were bonded to amide group of PNVA polymer. Fluorescence experiment indicated that the characteristic emission intensity of terbium ion was greatly increased and possibly sensitized by lanthanum ion (or gadolinium). Moreover, the wavelengths of terbium characteristic emissions were changed slightly. Also the characteristic emission intensity of terbium ion doped with lanthanum ion was better than that with gadolinium ion.
Sun
Yong
Y
School of Chemistry and Materials, Southern Yangtze University, Wuxi, China.
Chen
Ming-qing
MQ
Lu
Tian-hong
TH
Akashi
Mitsuru
M
Huang
Xiao-hua
XH