Phosphorescence of 8-azasteroids and related compounds
| Autor: | N. N. Khropik, S. A. Bagnich, A. L. Mikhal'chuk, V. N. Knyukshto, D. B. Rubinov |
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| Rok vydání: | 2005 |
| Předmět: |
Azasteroids
Molecular Structure Chemistry Photochemistry Fluorescence Atomic and Molecular Physics and Optics Spectral line Absorption Analytical Chemistry Spectrometry Fluorescence Intersystem crossing Luminescent Measurements Electron absorption Absorption (chemistry) Phosphorescence Instrumentation Spectroscopy Solid solution |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 61:2161-2167 |
| ISSN: | 1386-1425 |
| Popis: | We have investigated the electron absorption, fluorescence and phosphorescence spectra of 8-azasteroids and model compounds containing enaminodicarbonyl fragment. It has been shown that the investigated compounds have absorption and phosphorescence spectra similar in form and position. The results obtained permit the conclusion that the main deactivation channel of the excited singlet state is the intersystem crossing. It is suggested that the investigated 8-azasteroids of enaminodicarbonyl series under light irradiation undergo phototransformations presumably into derivatives with a γ-pyridone fragment. |
| Databáze: | OpenAIRE |
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