Abstract：In order to understand the effects of the common cations in geofluids on the structure of water, the present paper systematically studied the Raman spectra of NaCl—H2O, CaCl2—H2O, MgCl2—H2O, CuCl2—H2O, ZnCl2—H2O and FeCl3—H2O solutions by two methods. (1) The frequency shifts of the peak maximum around 3 400 cm-1 in O—H stretching Raman spectra of water reveal the destruction effects of these cations on the structure of water: Ca2+＞Mg2+＞Na＋, Fe3+＞Zn2+＞Cu2+;(2) Comparing the intensities of the shoulder peak around 3 250 cm-1 in the O—H stretching Raman spectra of water: ①all salts concerned destruct the structure of water;②with respect to the same chloride, the destruction extent of hydrogen-bond increases with concentration increasing;③comparing different chloride solutions at the same concentration, the destruction effects of catnions on the structure of water decrease in the sequences Ca2+＞Mg2+＞Na＋ and Fe3+＞Zn2+＞Cu2+. ④A hydrogen bond-affected mechanism combining cation destruction with complex compound production is supposed for the first time, and is used to explain the effects of the canions on the structure of water: CaCl2＞MgCl2＞FeCl3＞NaCl＞ZnCl2＞CuCl2.
Key words：Cations;Raman spectrum;Water structure;Hydrogen bond
杨 丹, 徐文艺. 常见氯盐溶液中阳离子对水分子氢键影响的拉曼光谱研究[J]. 光谱学与光谱分析, 2009, 29(10): 2694-2698.
YANG Dan, XU Wen-yi. Effects of Cations in Chlorine Salt Solution on O—H Stretching Raman Spectra of Water . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(10): 2694-2698.
[1] Mernagh T P, Wilde A R. Geochimica et Cosmochemica Acta, 1989, 53: 765. [2] Lü Xin-biao, YAO Shu-zhen, HE Mou-chun(吕新彪，姚书振，何谋春). Earth Science Frontiers(地学前缘)，2001，8(4)：429. [3] DING Jun-ying, NI Pei, RAO Bing, et al(丁俊英，倪 培，饶 冰，等). Geological Review(地质评论)，2004，50(2)：203. [4] LI Rui-hua, JIANG Zhan-peng, SHI Shao-qi, et al(李睿华, 蒋展鹏, 师绍琪, 等). Acta Physco-Chim. Sin.(物理化学学报), 2003, 19(2): 154. [5] LI Rui-hua, JIANG Zhan-peng, et al(李睿华, 蒋展鹏, 等). Acta Physco-Chim. Sin.(物理化学学报), 2004, 20(1): 98. [6] Chandra A, Chowdhuri S J. Phys. Chem. B, 2002, 106: 6779. [7] Jedlovszky P, Brodholt J P, Bruni F, et al. Chem. Phys., 1998, 108: 8528. [8] Hare D E, Sorensen C M. Journal of Chem. Phys., 1990, 93: 25. [9] Leberman R, Soper A K. Nature, 1995, 378: 364. [10] Hribar B, Southal N T, Vlachy V. Journal of Am. Chem. Soc., 2002, 124: 12302. [11] Terpstra P, Combes D, Zwic A. Journal of Chem. Phys., 1990, 92: 65. [12] Ratcllffe C I, Irish D E. Journal of Phys. Chem., 1982. 86: 4897. [13] Frantz J D, Jean D, Bjorn M. Chemical Geology, 1993, 106(1): 9. [14] Ikushima Y, Arai M. Chem. Phys.，1998, 238(3): 455. [15] ZHANG Xiang-lin(张祥麟). Chemical Complex(络合物化学). Beijing: Metallurgy Industry Press(北京：冶金工业出版社)，1979. 102. [16] SUN Cheng(孙 成). Inorganic Chemistry(无机化学). Beijing: Chinese Environmental Science Press(北京：中国环境科学出版社)，2007. 156. [17] Hribar B, Southal N T, Vlachy V. Journal of the Am. Chem. Society, 2002, 124(41): 12302.
