β Scribed by Wenlian Li; Takayuki Mishima; Gin-Ya Adachi; Jiro Shiokawa
No coin nor oath required. For personal study only.
New fluorescence films of complexes of Ce(III) with polyvinyl chloride (PVC) were prepared. The fluorescence properties of the PVC-Ce(II1) films were compared with those of Ce(II1) complexes with polymethylmethacrylate (PMMA) and with polystyrene (PS). The difference in the fluorescent properties between these three films was explained by assuming that the functional group coordinates with a Ce(II1) ion in the polymers. The fluorescence films dispersed a crown ether (18.C.6); PVC-Ce(III)-18-C-6, PMMA-Ce(III)-18-C-6 and PS-Ce(III)-18-C-6
were also prepared. In the films containing both Ce(II1) and the crown ether, competition between the crown ether and the coordination group in the polymer for the complexation with the Ce(II1) ion was discussed. Another new complex of Ce(II1) with poly(2-methacryloyloxymethyl-1,4,7,10,13,16hexaoxacyclododecane) (PMA18.C-6) in which the crown ether moiety is attached directly to the methacryloyloxymethyl group was synthesized, and the fluorescence of the complex powder, PMA18-C-6-Ce(II1) was also discussed.
π SIMILAR VOLUMES
The cerium(III) and neodymium(III) complexes of 5-aminoorotic acid were synthesized and characterized by means of spectral data (IR, Raman, 1 H NMR and 13 C NMR) and elemental analysis. Significant differences in the IR spectra of the complexes were observed as compared with the spectrum of the liga