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	A new heteroleptic ruthenium(ii) polypyridyl complex with long-wavelength absorption and high singlet-oxygen quantum yield
	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
	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
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000275943400023
内容类型	期刊论文
URI标识	http://www.corc.org.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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