Redox-Asymmetric Bisruthenium Complex Bridged by a Pyridin-4-yl Moiety: Synthesis, Characterization, and Electronic Coupling Studies

doi:10.1021/om3009662

CORC > 化学研究所 > 中国科学院化学研究所

	Redox-Asymmetric Bisruthenium Complex Bridged by a Pyridin-4-yl Moiety: Synthesis, Characterization, and Electronic Coupling Studies
	Yang, Wen-Wen 1; Yao, Jiannian 1; Zhong, Yu-Wu 1,2
刊名	ORGANOMETALLICS
	2012-12-24
卷号	31 期号:24 页码:8577-8583
ISSN号	0276-7333
DOI	10.1021/om3009662
英文摘要	A polyazine ligand, 5,5'-di(1-butyl-1,2,3-triazol-4-yl)-2,2'-bipyridine (Bu-dtabpyH), has been prepared by a "click" reaction. The treatment of Bu-dtabpyH with [Ru(bpy)(2)Cl-2] affords complex [Ru(bpy)(2)(Bu-dtabpyH)](2+) (bpy = 2,2'-bipyridine), which has been characterized by single-crystal X-ray analysis. The reaction of [Ru(bpy)(2)(Bu-dtabpyH)](2+) with another equivalent of [Ru(bpy)(2)Cl-2] in the presence of AgOTf gives a redox-asymmetric bisruthenium complex, [Ru(bpy)(2)(Bu-dtabpy)Ru(bpy)(2)](3+) (Bu-dtabpy is the 4-deprotonated form of Bu-dtabpyH), with one ruthenium atom binding to the pyridin-4-yl bridge with a Ru-N bond and the other with a Ru-C bond. This complex displays two Ru(II/III) redox couples at +0.79 and +1.28 V vs Ag/AgCl. After being transformed into a mixed-valence species, [Ru(bpy)(2)(Bu-dtabpy)Ru(bpy)(2)](4+), by one-electron oxidation, it exhibits a moderate metal-to-metal charge-transfer band around 1300 nm. Density functional theory and time-dependent density functional theory calculations have been carried out for the model complex [Ru(bpy)(2)(Me-dtabpy)Ru(bpy)(2)](3+) and the mixed-valence state [Ru(bpy)(2)(Me-dtabpy)Ru(bpy)(2)](4+) to complement these experimental results, where Me-dtabpy is the 4-deprotonated form of 5,5'-di(1-methyl-1,2,3-triazol-4-yl)-2,2'-bipyridine.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000315326400013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/48195]
专题	中国科学院化学研究所
通讯作者	Zhong, Yu-Wu
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Wen-Wen,Yao, Jiannian,Zhong, Yu-Wu. Redox-Asymmetric Bisruthenium Complex Bridged by a Pyridin-4-yl Moiety: Synthesis, Characterization, and Electronic Coupling Studies[J]. ORGANOMETALLICS,2012,31(24):8577-8583.
APA	Yang, Wen-Wen,Yao, Jiannian,&Zhong, Yu-Wu.(2012).Redox-Asymmetric Bisruthenium Complex Bridged by a Pyridin-4-yl Moiety: Synthesis, Characterization, and Electronic Coupling Studies.ORGANOMETALLICS,31(24),8577-8583.
MLA	Yang, Wen-Wen,et al."Redox-Asymmetric Bisruthenium Complex Bridged by a Pyridin-4-yl Moiety: Synthesis, Characterization, and Electronic Coupling Studies".ORGANOMETALLICS 31.24(2012):8577-8583.