Infrared Study of Alkyl Ketones Adsorbed on the Interlamellar Surface of Montmorillonite
Infrared Study of Alkyl Ketones Adsorbed on the Interlamellar Surface of Montmorillonite
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DOI：
10.1021/la9912186
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发表时间：
2000-05
期刊：
影响因子：
3.9
通讯作者：
J. Sohn;Jong Taik Kim
中科院分区：
文献类型：
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作者：
J. Sohn;Jong Taik Kim
用红外光谱和X-射线衍射法研究了丙酮、甲乙酮、二乙酮和甲基丙烯酸甲酯(MMA)在含不同层间阳离子的蒙脱石上的吸附。蒙脱石在1723−1554 cm-1附近出现的几个特征羰基带随阳离子种类和抽空温度的不同而不同。只有多价阳离子与甲基丙烯酸甲酯相互作用时，才观察到羰基伸缩带向低频移动约190 cm-1，这归因于>CO···Mn+络合物的形成。然而，在均相溶液中，不含蒙脱土的金属−甲基丙烯酸甲酯络合物不能得到。在1703−1640 cm~(-1)处出现的谱带是羰基氧与阳离子水或阳离子羟基之间的氢键，其位移程度与除Al~(3+)离子外的层间阳离子的极化能力有很好的相关性。然而..。
The adsorptions of acetone, methyl ethyl ketone, diethyl ketone, and methyl methacrylate (MMA) on montmorillonite (Mont) containing various interlayer cations have been studied by means of infrared spectroscopy and X-ray methods. Several characteristic carbonyl bands adsorbed on montmorillonite appeared differently at the region of 1723−1554 cm-1 depending on the species of cation and the evacuation temperature. The carbonyl stretching bands shifted about 190 cm-1 to lower frequencies have been observed only for the interaction between polyvalent cations and methyl methacrylate, which has been attributed to 〉CO···Mn+ complex formation. However, metal−MMA complexes without Mont using homogeneous solution were not obtained. The bands that appeared at 1703−1640 cm-1 are responsible for the hydrogen bonding between carbonyl oxygen and cationic water or cationic hydroxyl group, and the degree of shift indicates good correlation with the polarizing power of the interlayer cations except for the Al3+ ion. Howeve...