A new heteroleptic ruthenium(ii) polypyridyl complex with long-wavelength absorption and high singlet-oxygen quantum yield
文献类型：期刊论文
| 作者 | Zhou, Qian-Xiong1,2; Lei, Wan-Hua1; Chen, Jing-Rong1; Li, Chao1; Hou, Yuan-Jun1; Wang, Xue-Song1; Zhang, Bao-Wen1 |
| 刊名 | Chemistry-a european journal
 |
| 出版日期 | 2010 |
| 卷号 | 16期号:10页码:3157-3165 |
| 关键词 | Antitumor agents Bioinorganic chemistry Dna cleavage Ligand design Ruthenium |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.200902563 |
| 通讯作者 | Wang, xue-song(xswang@mail.ipc.ac.cn) |
| 英文摘要 | Ruthenium(ii) polypyridyl complexes with long-wavelength absorption and high singlet-oxygen quantum yield exhibit attractive potential in photodynamic therapy. a new heteroleptic ru(ii) polypyridyl complex, [ru(bpy)(dpb)(dppn)]2(+) (bpy=2,2'-bipyridine, dpb=2,3-bis(2-pyridyl)benzoquinoxaline, dppn=4,5,9,16-tetraazadibenzo[a,c]naphthacene), is reported, which exhibits a (1)mlct (mlct: metal-to-ligand charge transfer) maximum as long as 548 nm and a singlet-oxygen quantum yield as high as 0.43. steady/transient absorption/emission spectra indicate that the lowest-energy mlct state localizes on the dpb ligand, whereas the high singlet-oxygen quantum yield results from the relatively long (3)mlct(ru -> dpb) lifetime, which in turn is the result of the equilibrium between nearly isoenergetic excited states of (3)mlct(ru -> dpb) and (3)pi pi*(dppn). the dppn ligand also ensures a high binding affinity of the complex towards dna. thus, the combination of dpb and dppn gives the complex promising photodynamic activity, fully demonstrating the modularity and versatility of heteroleptic ru(ii) complexes. in contrast, [ru(bpy)(2)-(dpb)](2+) shows a long-wavelength (1)mlct maximum (551 nm) but a very low singlet-oxygen quantum yield (0.22), and [ru(bpy)(2)(dppn)](2+) shows a high singlet-oxygen quantum yield (0.79) but a very short wavelength (1)mlct maximum (442 nm). |
| WOS关键词 | TRANSITION-METAL-COMPLEXES ; DNA-BINDING PROPERTIES ; PHOTODYNAMIC THERAPY ; PHOTOPHYSICAL PROPERTIES ; RU(II) COMPLEXES ; MULTICHROMOPHORE APPROACH ; EMITTING STATE ; LIGHT-SWITCH ; PHOTOCLEAVAGE ; LIGAND |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000275943400023 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2406395 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Xue-Song |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Qian-Xiong,Lei, Wan-Hua,Chen, Jing-Rong,et al. A new heteroleptic ruthenium(ii) polypyridyl complex with long-wavelength absorption and high singlet-oxygen quantum yield[J]. Chemistry-a european journal,2010,16(10):3157-3165. |
| APA | Zhou, Qian-Xiong.,Lei, Wan-Hua.,Chen, Jing-Rong.,Li, Chao.,Hou, Yuan-Jun.,...&Zhang, Bao-Wen.(2010).A new heteroleptic ruthenium(ii) polypyridyl complex with long-wavelength absorption and high singlet-oxygen quantum yield.Chemistry-a european journal,16(10),3157-3165. |
| MLA | Zhou, Qian-Xiong,et al."A new heteroleptic ruthenium(ii) polypyridyl complex with long-wavelength absorption and high singlet-oxygen quantum yield".Chemistry-a european journal 16.10(2010):3157-3165. |
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来源：中国科学院大学
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