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Acta Physico-Chimica Sinica  2007, Vol. 23 Issue (01): 103-106    DOI: 10.3866/PKU.WHXB20070121
Note     
Effects of Anions on OH Stretching Raman Spectra of Water
LI Rui-Hua;JIANG Zhan-Peng
Department of Environmental Engineering, College of Environment, Nanjing University, Nanjing 210093, P. R. China; Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
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Abstract  Raman spectra of solutions of NaX (X=F, Cl, Br, I), Na2S, NaOH, NaNO3, Na2CO3, Na2SO4 and water were compared. The results showed that all of the studied anions broke the structure of water. The effects of the studied anions on Raman spectrum of water could be summed up into two kinds. F−, OH−, S2−, CO32− belonged to one kind, and Cl−, Br−, I−, NO3−, and SO42− belonged to the other. The main differences lay on their effects on 3600 cm−1 and 2900−3100 cm−1 of OH stretching Raman spectrum of water. And the reason that conduced to these differences was the intensity of hydrogen bond between anion and water molecule. Parameters of the anion influencing OH stretching Raman spectra of water included ion radius, ion charge and ion structure. The order of their effects on water structure was ion structure>ion charge>ion radius

Key wordsAnion      Raman spectrum      Water structure      Hydrogen bond     
Received: 09 June 2006      Published: 08 January 2007
Corresponding Authors: LI Rui-Hua     E-mail: liruihua@nju.edu.cn
Cite this article:

LI Rui-Hua;JIANG Zhan-Peng. Effects of Anions on OH Stretching Raman Spectra of Water. Acta Physico-Chimica Sinica, 2007, 23(01): 103-106.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20070121     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2007/V23/I01/103

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