Isotope effect on ultrafast charge-transfer-to-solvent reaction from I- to water in aqueous NaI solution

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	Isotope effect on ultrafast charge-transfer-to-solvent reaction from I- to water in aqueous NaI solution
	Suzuki, Yoshi-Ichi 1,2,3; Shen, Huan 1,2; Tang, Ying 1,2,4; Kurahashi, Naoya 1,2; Sekiguchi, Kentaro 1,2; Mizuno, Tomoya 3; Suzuki, Toshinori 1,2,3
刊名	CHEMICAL SCIENCE
	2011
卷号	2 期号:6 页码:1094-1102
英文摘要	A charge-transfer-to-solvent (CTTS) reaction from a photoexcited iodine atomic anion, I- (aq), in bulk water (H2O and D2O) was studied by time-resolved photoelectron spectroscopy using a liquid beam (microjet) of aqueous NaI solution. The P-2(3/2) CTTS state of I- (aq) was excited by a 226 nm femtosecond laser pulse and the evolution of the nonstationary electronic state was probed using another ultraviolet femtosecond laser pulse. Global fitting of the observed time-dependent photoelectron kinetic energy distributions provided the time constants of individual reaction steps and the photoelectron spectra from the CTTS state, a contact pair, the solvent-separated state, and a hydrated electron. Most of the elementary reaction steps revealed a strong deuterium isotope effect, indicating coupling of the electron dynamics and the hydrogen atomic motion of solvent water. However, nondiffusive geminate recombination processes from the CTTS state and a contact pair were almost insensitive to deuteration. Consequently, geminate recombination processes from the CTTS state and a contact pair occurs more efficiently in D2O, because the response of water is decelerated in D2O. In contrast, the recombination process from the solvent-separated state in the final step of the CTTS reaction is less efficient in D2O, presumably due to the smaller zero point energy.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	RESOLVED PHOTOELECTRON-SPECTROSCOPY ; ELECTRON-BINDING ENERGIES ; DENSITY-FUNCTIONAL THEORY ; RESONANCE RAMAN-SPECTRA ; LIQUID WATER ; HYDRATED ELECTRON ; SOLVATED ELECTRONS ; MOLECULAR-DYNAMICS ; RECOMBINATION DYNAMICS ; TEMPERATURE-DEPENDENCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000290629900015
公开日期	2015-12-01
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/8230]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	1.Kyoto Univ, Grad Sch Sci, Dept Chem, Kyoto 6068502, Japan 2.Japan Sci & Technol Agcy, CREST, Chiyoda Ku, Tokyo 1020075, Japan 3.RIKEN, Adv Sci Inst, Chem Dynam Lab, Wako, Saitama 3510198, Japan 4.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Suzuki, Yoshi-Ichi,Shen, Huan,Tang, Ying,et al. Isotope effect on ultrafast charge-transfer-to-solvent reaction from I- to water in aqueous NaI solution[J]. CHEMICAL SCIENCE,2011,2(6):1094-1102.
APA	Suzuki, Yoshi-Ichi.,Shen, Huan.,Tang, Ying.,Kurahashi, Naoya.,Sekiguchi, Kentaro.,...&Suzuki, Toshinori.(2011).Isotope effect on ultrafast charge-transfer-to-solvent reaction from I- to water in aqueous NaI solution.CHEMICAL SCIENCE,2(6),1094-1102.
MLA	Suzuki, Yoshi-Ichi,et al."Isotope effect on ultrafast charge-transfer-to-solvent reaction from I- to water in aqueous NaI solution".CHEMICAL SCIENCE 2.6(2011):1094-1102.