Determination of double decker sandwich structured La-substituted chlorophyll a by EXAFS
文献类型：期刊论文
| 作者 | Wei, ZG; Hong, FS; Zhao, GW; Tao, Y ; Hu, TD; Liu, T; Xie, YN; Tao Y(陶冶); Hu TD(胡天斗); Liu T(刘涛)
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| 刊名 | ACTA CHIMICA SINICA
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| 出版日期 | 2000 |
| 卷号 | 58期号:5页码:559-562 |
| 关键词 | La substituted chlorophyll a EXAFS MCD molecular structure |
| 其他题名 | 叶绿素稀土配位结构的EXAFS研究 |
| 通讯作者 | Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Synchrotron Radiat Lab, Beijing 100039, Peoples R China ; Inst Rock & Mineral Anal, Beijing 100037, Peoples R China ; Univ Sci & Technol China, Grad Sch, Beijing 100039, Peoples R China |
| 英文摘要 | Double decker sandwich lanthanoid porphyrins have been synthesized and characterized systematically. Chlorophyll. is a representative of natural porphyrin derivatives, It is therefore interesting to study the chemical form of lanthanide in chlorophyll. We synthesized Lanthanum(III) Chlorophyll a derivatives, whose UV - vis and IR spectra confirm the coordination of La(III) to the porphyrin rings. MCD spectra show the special bands in Soret band region, which indicate a transition from sandwich structure porphyrin complexes. By extended X - ray absorption fine structure (EXAFS) method, it is found that the molecular structure of synthesized La - Chl a can be well fitted by the double decker sandwich structure model that La is surrounded by eight nitrogen atoms from two porphyrin rings. The MCD and EXAFS results indicate that the La in chlorophyll a exist as a sandwich shaped complexes with an average La - N bond length of 0.261 nm. To our best knowledge, this is the first example of La - Chl a with a double decker sandwich molecular structure. |
| 学科主题 | Chemistry |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000087607200015 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/237954]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wei, ZG,Hong, FS,Zhao, GW,et al. Determination of double decker sandwich structured La-substituted chlorophyll a by EXAFS[J]. ACTA CHIMICA SINICA,2000,58(5):559-562. |
| APA | Wei, ZG.,Hong, FS.,Zhao, GW.,Tao, Y.,Hu, TD.,...&谢亚宁.(2000).Determination of double decker sandwich structured La-substituted chlorophyll a by EXAFS.ACTA CHIMICA SINICA,58(5),559-562. |
| MLA | Wei, ZG,et al."Determination of double decker sandwich structured La-substituted chlorophyll a by EXAFS".ACTA CHIMICA SINICA 58.5(2000):559-562. |
入库方式： OAI收割
来源：高能物理研究所
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