Determination of Astaxanthin and Canthaxanthin Triplet Properties in Different Polarities of the Solvent by Laser Flash Photolysis
文献类型：期刊论文
| 作者 | Li Haixia（李海霞） ; Zhang Peng(张鹏） ; Song Xiyu（宋西玉） ; Wang Wenfeng（王文锋） |
| 刊名 | CHINESE JOURNAL OF CHEMISTRY
 |
| 出版日期 | 2011 |
| 卷号 | 29期号:7页码:1535 |
| ISSN号 | 1001-604X |
| 英文摘要 | Triplet-triplet extinction coefficients for astaxanthin (I) and canthaxanthin (II) in different deaerated polarity solutions of MeCN and benzene were evaluated by laser flash photolysis at 298 K in the spectral region from 350 to 650 nm by energy transfer method, employing 2-acetonaphthone as sensitizer. The triplet-triplet extinction coefficients in MeCN and benzene were different in terms of the carotenoid present. The maximum triplet-triplet extinction coefficient was 0.1-1.7x10(5) L.mol(-1).cm(-1) in different solvents. The rate constants of triplet decay were I: 1.25x10(10) L.mol(-1).s(-1), II: 1.12x10(10) L.mol(-1).s(-1) in MeCN; and I: 1.75x10(10) L.mol(-1).cm(-1), II: 3.27x10(10) L.mol(-1).s(-1) in benzene. The bimolecular rate constants of energy transfer from triplet excited 2-acetonaphthone to carotenoids were determined from the linear regression of the decay rate constant of 2-acetonaphthone triplet at varying carotenoid concentrations. The triplet lifetimes of (3)AST* and (3)CAN* in different solvents were also determined. The results indicated that triplet energy transfer was nearly diffusion-controlled. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000293697500034 |
| 公开日期 | 2012-07-04 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/9484]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Li Haixia,Zhang Peng,Song Xiyu,et al. Determination of Astaxanthin and Canthaxanthin Triplet Properties in Different Polarities of the Solvent by Laser Flash Photolysis[J]. CHINESE JOURNAL OF CHEMISTRY,2011,29(7):1535. |
| APA | Li Haixia,Zhang Peng,Song Xiyu,&Wang Wenfeng.(2011).Determination of Astaxanthin and Canthaxanthin Triplet Properties in Different Polarities of the Solvent by Laser Flash Photolysis.CHINESE JOURNAL OF CHEMISTRY,29(7),1535. |
| MLA | Li Haixia,et al."Determination of Astaxanthin and Canthaxanthin Triplet Properties in Different Polarities of the Solvent by Laser Flash Photolysis".CHINESE JOURNAL OF CHEMISTRY 29.7(2011):1535. |
入库方式： OAI收割
来源：上海应用物理研究所
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