Cyclodextrin Inclusion Complexes with Bimanes and Other Laser Dyes
Final rept. 1 Mar 1988-31 Jul 1991
XAVIER UNIV OF LOUISIANA NEW ORLEANS
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Effects of cyclodextrins on various families of laser dyes were studied. Unsubstituted as well as substituted cyclodextrins were examined in aqueous solutions. Among the laser dyes examined were examples of rhodamines, coumarins, bimanes, pyrromethene BF2 complexes, phenyl substituted oxazoles and p-terphenyl. Variable effects of the cyclodextrins were noted on the fluorescence and UV absorption of these dyes. The solubility of these compounds in aqueous solution was increased by the presence of cyclodextrins. Effects of cyclodextrins on lasing were also studied. Co-inclusion of amphiphiles together with laser dyes in the beta-cyclodextrin cavity was not found to have any significant effect on fluorescence emission. Infra red studies were performed on cyclodextrin solid complexes with coumarins. The presence of cyclodextrins in the mobile phase increased the retention factor values for many dyes on thin layer chromatography. Extraction of laser dyes from aqueous solutions with solid phase cyclodextrin cartridges was also done.
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