Ultrafast relaxation dynamics of amine-substituted bipyridyl ruthenium(II) complexes

	Ultrafast relaxation dynamics of amine-substituted bipyridyl ruthenium(II) complexes
	Song, Hongwei 1,2; Wang, Xian 1,2; Yang, WenWen 1; He, Guiying 1,2; Kuang, Zhuoran 1,2; Li, Yang 1,2; Xia, Andong 1,2; Zhong, Yu-Wu 1,2; Kong, Fan'ao 1
刊名	CHEMICAL PHYSICS LETTERS
	2017-09-01
卷号	683 页码:322-328
英文摘要	The excited state properties of a series of ruthenium(II) amine-substituted bipyridyl complexes, [Ru(bpy)(n)(NNbpy)(3) (n)](2+), were investigated by steady-state and transient absorption spectroscopy, as well as quantum chemical calculations. The steady-state absorption spectra of these complexes in CH3CN show a distinct red-shift of the (MLCT)-M-1 absorption with increasing numbers of amine substituent, whereas the emission spectra indicate an energy gap order of [Ru(bpy)(3)](2+) > [Ru(bpy)(2)(NNbpy)](2+) > [Ru(NNbpy)(3)](2+) > [Ru(bpy)(NNbpy)(2)](2+). Nanosecond, femtosecond transient absorption and electrochemical measurements suggest that NNbpy ligand has a strong influence on the electronic and emission properties of these complexes, due to electron-rich amine substituent. We illustrate how the numbers of amine substituent modulate the spectroscopic properties of transition metal complexes, which is related to the design of new electro-active systems with novel photoelectrochemical properties. (C) 2017 Published by Elsevier B.V.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/39073]
专题	化学研究所_光化学实验室
作者单位	1.Chinese Acad Sci, BNLMS, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Song, Hongwei,Wang, Xian,Yang, WenWen,et al. Ultrafast relaxation dynamics of amine-substituted bipyridyl ruthenium(II) complexes[J]. CHEMICAL PHYSICS LETTERS,2017,683:322-328.
APA	Song, Hongwei.,Wang, Xian.,Yang, WenWen.,He, Guiying.,Kuang, Zhuoran.,...&Kong, Fan'ao.(2017).Ultrafast relaxation dynamics of amine-substituted bipyridyl ruthenium(II) complexes.CHEMICAL PHYSICS LETTERS,683,322-328.
MLA	Song, Hongwei,et al."Ultrafast relaxation dynamics of amine-substituted bipyridyl ruthenium(II) complexes".CHEMICAL PHYSICS LETTERS 683(2017):322-328.