Application of Gaussian multi-peak fitting to radial distribution function

ISL OpenIR > 青海盐湖研究所知识仓储

	Application of Gaussian multi-peak fitting to radial distribution function
	Feng Wang-Sheng 1,3; Fang Yan 1; Xu Ji-Xiang 1,3; Fang Chun-Hui1 ; Jia Quan-Jie 2; Wang Huan-Hua 2; Jiang Xiao-Ming 2
	2008-03-01
发表期刊	ACTA PHYSICO-CHIMICA SINICA
卷号	24 期号:3 页码:497-501
关键词	Synchrotron Radiation X-ray Scattering Radial Distribution Function Multi-peak Fitting Hydrated Structure
摘要	Aqueous structures with salt to water molar ratios of 1:30 (Rb2SO4) and 1:14 (Cs2SO4) were measured by X-ray scattering of synchrotron radiation. The radial distribution functions (RDF) of the two example solutions were obtained by analyzing the scattering data. RDF overlapped peaks near the first hydration shell were dealt with Gaussian multi-peak fitting. The fitting data were agreed well with the experimental data. The adscription of every fitting peak was determined by comparing the fitting data with hydrated ion and crystal structure data reported in literatures. The analysis of fitting result indicates that the coordination number of Rb+ and Cs+ is six in the first hydration shell, and the spatial structures are both distorted octahedrons. The contact ion pairs of metal ions with sulphate ion exist in two solutions where the characteristic distances of Rb-S and Cs-S were determined to be 0.407 and 0.427 nm, respectively. The study demonstrated that multi-peak fitting was useful for interpreting the hydrated structure of ions.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5830
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Feng Wang-Sheng,Fang Yan,Xu Ji-Xiang,et al. Application of Gaussian multi-peak fitting to radial distribution function[J]. ACTA PHYSICO-CHIMICA SINICA,2008,24(3):497-501.
APA	Feng Wang-Sheng.,Fang Yan.,Xu Ji-Xiang.,Fang Chun-Hui.,Jia Quan-Jie.,...&Jiang Xiao-Ming.(2008).Application of Gaussian multi-peak fitting to radial distribution function.ACTA PHYSICO-CHIMICA SINICA,24(3),497-501.
MLA	Feng Wang-Sheng,et al."Application of Gaussian multi-peak fitting to radial distribution function".ACTA PHYSICO-CHIMICA SINICA 24.3(2008):497-501.