XAFS study of Cu<sup>2+</sup> in aqueous solution of CuBr<sub>2</sub>

Binbin DAI; Qian WANG; Jingyuan MA; Jiong LI; Shuo ZHANG; Yuying HUANG; Wei HUANG; Guozhong WU; Yang Zou; Zheng JIANG; Hongjie XU

doi:10.13538/j.1001-8042/nst.23.129-133

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XAFS study of Cu²⁺ in aqueous solution of CuBr₂

SYNCHROTRON TECHNOLOGY AND APPLICATIONS | 更新时间：2021-01-29

- XAFS study of Cu²⁺ in aqueous solution of CuBr₂
- XAFS study of Cu²⁺ in aqueous solution of CuBr₂
- 核技术（英文版）
- 作者机构：
  
  1.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
- 作者简介：
  
  Corresponding author. E-mail address: xuhongjie@sinap.ac.cn
  
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- 基金信息：
  
  National Natural Science Foundation of China;Project supported by the National Basic Research Program of China;Special Presidential Foundation of the Chinese Academy of Science, China;Science and Technology Commission of Shanghai Municipality
- DOI：10.13538/j.1001-8042/nst.23.129-133 中图分类号：
- 纸质出版日期：2012-06-20，
  
  收稿日期：2012-03-19，
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引用本文
Binbin DAI, Qian WANG, Jingyuan MA, 等. XAFS study of Cu²⁺ in aqueous solution of CuBr₂[J]. 核技术（英文版）, 2012, 23(3):129-133.

Binbin DAI, Qian WANG, Jingyuan MA, et al. XAFS study of Cu²⁺ in aqueous solution of CuBr₂[J]. Nuclear Science and Techniques, 2012, 23(3):129-133.
Binbin DAI, Qian WANG, Jingyuan MA, 等. XAFS study of Cu²⁺ in aqueous solution of CuBr₂[J]. 核技术（英文版）, 2012, 23(3):129-133. DOI： 10.13538/j.1001-8042/nst.23.129-133.

Binbin DAI, Qian WANG, Jingyuan MA, et al. XAFS study of Cu²⁺ in aqueous solution of CuBr₂[J]. Nuclear Science and Techniques, 2012, 23(3):129-133. DOI： 10.13538/j.1001-8042/nst.23.129-133.

XAFS study of Cu 2+ in aqueous solution of CuBr 2 1 first-author 1 1 1 1 1 1 1 1 1 1 corresp Corresponding author. E-mail address: xuhongjie@sinap.ac.cn Corresponding author. E-mail address: xuhongjie@sinap.ac.cn xuhongjie@sinap.ac.cn Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China Copper ion is the essential microelement to many organisms. In this paper, the local structure of Cu 2+ in CuBr 2 aqueous solutions with different concentrations are investigated by using X-ray absorption fine structure (XAFS) technique. XANES (X-ray Absorption Near Edge Structure) spectra indicate that charge transfer from Br - to Cu 2+ decreases with the solution concentration, which lead to a shift of the absorption edge. The shoulder appearing at the rising edge proves to be characteristic of a tetragonal distortion. The Fourier transform magnitudes of EXAFS (Extended X-ray absorption fine structure) data of Cu species suggest that more Cu-Br bonds may exist in high concentrations. A fivefold coordination configuration like a pyramid is used as the fitting parameters. From the analysis of the coordination numbers, the proportion of Cu-O and Cu-Br is 4:1 in the saturated solution. The Br atom is on the equatorial plane of the model. The fitting results agree well with the experiment data. CuBr 2 Aqueous solution XAFS coordination References D'Angelo P , Barone V , Chillemi G , et al . J Am Chem Soc 2002 , 124 : 1958 - 1967 . J Am Chem Soc Dang LX , Schenter GK , Fulton JL . J Phys Chem B , 2003 , 107 : 14119 - 14123 . J Phys Chem B Salmon PS , Neilson GW . Journal of Physics-Condensed Matter , 1989 , 1 : 5291 - 5295 . Journal of Physics-Condensed Matter Becaria A , Bondy SC , Campbell A . Journal of Alzheimer's Disease , 2003 , 5 : 31 - 38 . Journal of Alzheimer's Disease Kucharzewski M , Braziewicz J , Majewska U , et al . Biol Trace Elem Res , 2003 , 93 : 9 - 18 . Biol Trace Elem Res Miesel R , Zuber M . Inflammation , 1993 , 17 : 283 - 294 . Inflammation Kau L S , Spira-Solomon D J , Penner-Hahn J E , et al . J Am Chem Soc , 1987 , 109 : 6433 - 6442 . J Am Chem Soc Chaboy J , Munoz-Paez A , Carrera F , et al . Phys Rev B , 2005 , 71 : 134208 . Phys Rev B Berry A J , Hack A C , Mavrogenes J A , et al . Am Mineral , 2006 , 91 : 1773 - 1782 . Am Mineral Corami A , D'Acapito F , Mignardi S , et al . Materials Science and Engineering B-Advanced Functional Solid-State Materials , 2008 , 149 : 209 - 213 . Materials Science and Engineering B-Advanced Functional Solid-State Materials Frank P , Benfatto M , Szilagyi R K , et al . Inorg Chem , 2007 , 46 : 7684 - 7684 . Inorg Chem Korshin G V , Frenkel A I , Stern E A . Environmental Science & Technology , 1998 , 32 : 2699 - 2705 . Environmental Science & Technology Garcia J , Benfatto M , Natoli C R , et al . Chem Phys , 1989 , 132 : 295 - 302 . Chem Phys Okan S E , Salmon P S . Mol Phys , 1995 , 85 : 981 - 998 . Mol Phys Pasquarello A , Petri I , Salmon P S , et al . Sci , 2001 , 291 : 856 - 859 . Sci Benfatto M , D'Angelo P , Della Longa S , et al . Phys Rev B , 2002 , 65 : 174205/174201 - 174205 . Phys Rev B Frank P , Benfatto M , Szilagyi R K , et al . Inorg Chem , 2005 , 44 : 1922 - 1933 . Inorg Chem Bryantsev V S , Diallo M S , van Duin A C T , et al . The Journal of Physical Chemistry A , 2008 , 112 : 9104 - 9112 . The Journal of Physical Chemistry A Mo L P , Ma Z C , Zhang Z H . Synth Commun , 2005 , 35 : 1997 - 2004 . Synth Commun King L C , Ostrum G K . The Journal of Organic Chemistry , 1964 , 29 : 3459 - 3461 . The Journal of Organic Chemistry Bhatt S , Nayak S K . Synth Commun , 2007 , 37 : 1381 - 1388 . Synth Commun Onori G , Santucci A , Scafati A , et al . Chem Phys Lett , 1988 , 149 : 289 - 294 . Chem Phys Lett Palladino L , Dellalonga S , Reale A , et al . J Chem Phys , 1993 , 98 : 2720 - 2726 . J Chem Phys Shivaiah V , Das S K . Angew Chem Int Ed , 2006 , 45 : 245 - 248 . Angew Chem Int Ed Meijuan Y , Wangsheng C , Xing C , et al . Journal of Physics: Conference Series , 2009 , 190 . Journal of Physics: Conference Series Fontaine A , Lagarde P , Raoux D , et al . Phys Rev Lett , 1978 , 41 : 504 - 507 . Phys Rev Lett 10.13538/j.1001-8042/nst.23.129-133 Supported by National Natural Science Foundation of China (Grant No. 11005148, 10705046, 11135008) , National Basic Research Program of China (Grant No. 2010CB934501) , Special Presidential Foundation of the Chinese Academy of Science (Grant No. 29) and Science and Technology Commission of Shanghai Municipality (Grant No. 11JC1414900) 2012-03-19 2012-06-20 2021-01-19 2012 Nuclear Science and Techniques 03 23

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XAFS study of Cu²⁺ in aqueous solution of CuBr₂