Solvent effect on the emission spectra and the fluorescence quantum yields of psoralens.
この論文をさがす
抄録
The emission spectra and the fluorescence quantum yields of psoralens were measured in various solvents. We found that these compounds show a large Stokes shift, which can be explained in terms of intermolecular charge transfer interaction between a solute molecule and a solvent molecule in an excited singlet state. Psoralens have a larger fluorescence quantum yield in hydroxylic solvents than in non-hydroxylic solvents. These were in the following order : TMP≈5-MOP>PS≈8-MOP≈8-iso-AOP. We postulate that the fluorescence quantum yield is increased by the hydrogen bonding between a solute molecule and a solvent molecule in an excited singlet state. In addition, the fluorescence efficiency was enhanced by the presence of an electron-donating substituent group. The peak wavelengths of the phosphorescence spectra were little affected by the different solvents.
収録刊行物
-
- CHEMICAL & PHARMACEUTICAL BULLETIN
-
CHEMICAL & PHARMACEUTICAL BULLETIN 29 (3), 603-608, 1981
公益社団法人 日本薬学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282679144496896
-
- NII論文ID
- 110003633708
-
- NII書誌ID
- AA00602100
-
- ISSN
- 13475223
- 00092363
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可