A high-pressure FT-IR study of the isotope effects on water and high-pressure ices
A high-pressure FT-IR study of the isotope effects on water and high-pressure ices
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DOI：
10.1016/s0009-2614(00)00788-0
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发表时间：
2000-08-11
影响因子：
2.8
通讯作者：
Lin, SH
中科院分区：
文献类型：
--
作者：
Chang, HC;Huang, KH;Lin, SH
本文分析了H_2O/D_2O混合物在4GPa压力下的红外光谱分布。当混合物转变为高压冰时，观察到弯曲峰频率的蓝移。有趣的是，D2 O/HOD/H2O的弯曲频移比分别约为0.8：1.9：3.0。由于折射率和弹性常数在我们测量的压力范围内H2O和D2 O之间没有区别，本研究表明，D2 O，HOD和H2O的弯曲振动提供了理解水平衡混合物的同位素分子间相互作用的关键。(C)2000 Elsevier Science B. V.保留所有权利。
The infrared spectroscopic profiles of H2O/D2O mixtures have been analyzed on the application of pressure up to 4 GPa. As the mixtures transform to high-pressure ices, blue-shifts of the bending peak frequencies were observed. interestingly enough, the bending frequency shift ratio is about 0.8:1.9:3.0 for D2O/HOD/H2O, respectively. As the refractive index and elastic constant show no distinction between H2O and D2O over our measured pressure range, this study demonstrates that the bending vibrations of D2O, HOD, and H2O provide the key to the understanding of isotopic intermolecular interactions of aqueous equilibrium mixtures. (C) 2000 Elsevier Science B.V. All rights reserved.