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Cohesive Vibrational and Structural Depiction of Intercalated Water in Montmorillonite
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2017-12-19 00:00:00 , DOI: 10.1021/acsearthspacechem.7b00103 Merve Yeşilbaş 1 , Michael Holmboe 1 , Jean-François Boily 1
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2017-12-19 00:00:00 , DOI: 10.1021/acsearthspacechem.7b00103 Merve Yeşilbaş 1 , Michael Holmboe 1 , Jean-François Boily 1
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The vibrational spectral profiles of Na- and Ca-montmorillonite (MMT) of controlled water layer populations (nW) was extracted by chemometric analysis of new Fourier transform infrared (FTIR) spectroscopy data and validated by mixed-layer modeling of previously published X-ray diffraction data. These efforts resolved FTIR spectral profiles of 0W, 1W, and 2W interlayers, which can now be used to explore the distinct hydration states of MMT. These spectral profiles reflect water populations organized around interlayer cations (Na+, Ca2+), interacting with siloxane groups of the basal face of the interlayer, and with other bound and “free” water molecules. This cohesive description of water-bearing clays provides the link needed to relate vibrational to structural attributes of these geochemically important materials.
中文翻译：
蒙脱土中插层水的内聚振动与结构表征
通过化学分析新的傅立叶变换红外（FTIR）光谱数据提取了受控水层人口（n W）的钠和钙蒙脱石（MMT）的振动光谱图，并通过先前发表的X-射线衍射数据。这些努力解决了0W，1W和2W夹层的FTIR光谱图，现在可用于探索MMT的不同水合状态。这些光谱图反映了围绕层间阳离子（Na +，Ca 2+）与中间层基面的硅氧烷基团以及与其他结合的和“游离的”水分子相互作用。含水粘土的这种粘性描述提供了将振动与这些地球化学重要材料的结构属性相关联所需的链接。
更新日期：2017-12-19
中文翻译：
蒙脱土中插层水的内聚振动与结构表征
通过化学分析新的傅立叶变换红外（FTIR）光谱数据提取了受控水层人口（n W）的钠和钙蒙脱石（MMT）的振动光谱图，并通过先前发表的X-射线衍射数据。这些努力解决了0W，1W和2W夹层的FTIR光谱图，现在可用于探索MMT的不同水合状态。这些光谱图反映了围绕层间阳离子（Na +，Ca 2+）与中间层基面的硅氧烷基团以及与其他结合的和“游离的”水分子相互作用。含水粘土的这种粘性描述提供了将振动与这些地球化学重要材料的结构属性相关联所需的链接。
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