Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation

	Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation
	Chen, X; Chu WS(储旺盛); Wu ZY(吴自玉); Chu, WS; Wang, L; Wu, ZY
刊名	JOURNAL OF MOLECULAR STRUCTURE
	2009
卷号	920 期号:1-3 页码:#REF!
关键词	Pt4+ The local structure XANES EXAFS
通讯作者	Wu, ZY (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要	The noble metal ions play an important role in many chemical reactions, but at the present time they represent also potentially new environmental contaminants. There is relatively little information available to adequately assess the potential health hazards, so that to evaluate the potential hazards and identify the necessary actions to reduce the risks associated with exposure to these metals and their compounds it is important to understand the local structure around noble metal ions. In this contribution, the local coordination around platinum (IV) ions e.g., Pt4+ in aqueous solution, has been investigated by using X-ray absorption spectroscopy (XAS). X-ray absorption near-edge spectra (XANES) of both (PtCl6](2-) and [PtCl4(OH)(2)](2-) in an aqueous solution have been calculated using FEFF8.2 and both are characterized by an octahedral geometry. From these calculations, we may also assign a characteristic post-edge feature to a contribution of Cl cl-states. From the EXAFS analysis we also determined the corresponding Pt bond distances, e.g., 2.33 angstrom for the Pt-Cl distance and 2.03 angstrom for the Pt-O distance in these aqueous solutions. The same analysis provides evidence that the peaks in the Fourier transform at about 4.0 angstrom are due to multiple scattering collinear Cl-Pt-Cl contributions. (C) 2008 Elsevier B.V. All rights reserved.
学科主题	Chemistry
类目[WOS]	Chemistry, Physical
收录类别	SCI
WOS记录号	WOS:000264251400007
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225680]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Chen, X,Chu WS,Wu ZY,et al. Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation[J]. JOURNAL OF MOLECULAR STRUCTURE,2009,920(1-3):#REF!.
APA	Chen, X,储旺盛,吴自玉,Chu, WS,Wang, L,&Wu, ZY.(2009).Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation.JOURNAL OF MOLECULAR STRUCTURE,920(1-3),#REF!.
MLA	Chen, X,et al."Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation".JOURNAL OF MOLECULAR STRUCTURE 920.1-3(2009):#REF!.