シクロデキストリンを用いたスピロピラン誘導体の2光子イオン化
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概要
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Transient absorption measurement using 266-nm laser flash photolysis technique was performed with regard to 1',3',3'-Trimethylspiro[1(2H)-benzopyran]-2,2'-indoline：（SP）in the absence and presence of cyclodextrins (CDs) in water solvent. Ionization of SPs occurred within the laser flash (5 ns) to give SPs radical cation (SP・+) and water solvated electron (eaq・-). The ionization yields of SP s in the present of αCD, βCD, mβCD, and γCD, depended on the properties of the complexes with CD, generated form from two-photon excitation with simultaneous irradiation to 266-nm laser. This finding implied that the useful two-photon ionization resulting from the complexes of SP and βCD, SP2 and γCD, photochromic molecule of SP (merocyanine) and αCD, respectively.
- 2011-08-04
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