Fluorescence quenching of carbazole by tropanic alkaloids
β Scribed by E.M. Talavera; M. Jimenez; B. Quintero; J.M. Alvarez
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 477 KB
- Volume
- 54
- Category
- Article
- ISSN
- 1010-6030
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β¦ Synopsis
A preliminary study of the steady state fluorescence quenching of carbazole by tropanic alkaloids in eyclohexane and acetonitrile has been performed. The results obtained support hydrogen-bond formation in both the ground and excited states. Using acetonitrile as solvent, a new fluorescence band is observed at higher wavelengths.
π SIMILAR VOLUMES
ANtract--The fluorescence quenching of polystyrene by oxygen at room temperature was investigated. The diffusion coefficient of oxygen in polystyrene films was taken as 3.1 x 10 -7 cm2/sec; the energy migration coefficient of polystyrene in the excited singlet state was estimated as 6 x 10 6 cm2/sec
Experimental conditions for formation of inclusion complexes between carbazole and ellipticine and several cyclodextrins (CDs): /3-cyclodextrin ( p-CD), hydroxypropyl B-cyclodextrin @@CD), (2,6-di-O-methyl)-P-cyclodextrin (DM p-CD), (2,3,6-t&0-methyl)-&cyclodextrin (TMP\_CD) and -y-cyclodextrin (YCD