CJCU

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (12): 2463.

• Articles • Previous Articles     Next Articles

Mechanism of Photoinduced Formation Fucoxanthin Radical Cation in Organic Solvents

YANG Fan1,2, WANG Tian-He2, WANG Peng2, HAN Rui-Min2, AI Xi-Cheng2, ZHANG Jian-Ping2*   

  1. 1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
    2. Department of Chemistry, Renmin University of China, Beijing 100872, China
  • Received:2010-02-02 Revised:2010-05-14 Online:2010-12-10 Published:2010-12-06
  • Contact: ZHANG Jian-Ping E-mail:jpzhang@chem.ruc.edu.cn
  • About author:张建平, 男, 博士, 教授, 主要从事物理化学的研究.
  • Supported by:

    国家自然科学基金(批准号: 20803091, 20703067)和中国人民大学科学研究基金（中央高校基本科研业务费专项资金）资助.

PDF (PC)

Cited

5

Abstract: Kinetics of fucoxanthin radical cation (Fuc??) formation in chloroform and in methanol were comparatively studied by means of nanosecond time-resolved absorption spectroscopy combined with spetroelectrochemistry. Direct photoexcitation and anthracene-sensitized triplet excitation, respectively, were used to initiate the photochemistry of different fucoxanthin solutions. It was found that in chloroform Fuc?? was mainly formed from the singlet excited state of Fuc (S2), whereas in methanol it was mainly formed from the lowest triplet excited state of Fuc (T1).

Key words: Fucoxanthin, Radical cation, Nanosecond time-resolved absorption spectroscopy, Spetroelectrochemistry

TrendMD: