Phosphorescence of 8-azasteroids and related compounds

Phosphorescence of 8-azasteroids and related compounds
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DOI:
10.1016/j.saa.2004.08.015
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发表时间:
2005-07-01
影响因子:
4.4
通讯作者:
Rubinov, DB
Rubinov, DB
中科院分区:
化学2区
文献类型:
--
作者:
Bagnich, SA;Khropik, NN;Rubinov, DB

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研究了8-氮杂甾类化合物和含烯氨基二羰基片段的模型化合物的电子吸收光谱、荧光光谱和磷光光谱。结果表明,所研究的化合物具有相似的形式和位置的吸收光谱和磷光光谱。结果表明,激发单重态的主要失活通道是系间跃迁。有人建议,研究8-azasteroids的enaminodicarbonyl系列在光照射下进行phototransformations推测成衍生物与γ-吡啶酮片段。(c)2004 Elsevier B. V.保留所有权利。
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 gamma-pyridone fragment. (c) 2004 Elsevier B.V. All rights reserved.