- PII
- S0023119325010036-1
- DOI
- 10.31857/S0023119325010036
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 59 / Issue number 1
- Pages
- 18-25
- Abstract
- The process of quenching of long-lived phosphorescence of ternary complexes naphthalene-β-cyclodextrin-cyclohexane, localized in the matrix of double complexes β-cyclodextrin-cyclohexane, in aqueous suspension of crystalline hydrates and powder formed by drying of crystalline hydrates has been studied. In the suspension, the phosphorescence kinetics are monoexponential and the quenching is dynamic; the bimolecular quenching constant is equal kq = 0.87 × 105 s–1M–1. In the powder, the phosphorescence kinetics are not monoexponential, which is apparently due to the different surrounding structure of the naphthalene molecules. The inhomogeneity of the environment is expressed in the presence of a distribution of the rate constants of radiation-free processes and a decrease in the availability of naphthalene molecules for interaction with oxygen.
- Keywords
- фосфоресценция нафталин комплексы включения β-циклодекстрин
- Date of publication
- 06.10.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 18
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