Intersalation Reactions of Trisdiimine Metal Complexes with Montmorillonite Clay: A New Approach.
Intersalation Reactions of Trisdiimine Metal Complexes with Montmorillonite Clay: A New Approach.
复制标题
三二亚胺金属配合物与蒙脱土的嵌入反应:一种新方法。
DOI:
10.1006/jcis.2000.7228
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发表时间:
2001
影响因子:
9.9
通讯作者:
Dutta
中科院分区:
文献类型:
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作者:
Borah;Ganguli;Dutta
Intersalation reactions of the complexes [Ni(L-L)(3)]SO(4) and [Ni(L-L)(3)]Cl(2) (L-L=1,10-phenanthroline (phen), 2,2'-bipyridyl (bpy)), with Na-montmorillonite carried out under different dynamic conditions such as ultrasonic irradiation, refluxing, autoclaving, and vigorous stirring showed that under ultrasonic irradiation, maximum adsorption of the metal complexes occurred within a period of 30 min. Metal complexes containing the phen ligand showed higher adsorption than those containing bpy. Maximum adsorption up to about three times the cation exchange capacity (CEC) of the clay was observed. Aggregated (basal spacing d(001) 12.5 Å) Na-montmorillonite, in treatment with a higher amount (>CEC) of metal complexes, formed monolayered (basal spacing d(001) 17.6 Å) species, while with predispersed clay, bilayered (basal spacing d(001)>28 Å) or pseudo-trilayer (basal spacing d(001)>32 Å) species were formed. The bilayered species were thermally stable up to 250 degrees C and above this temperature monolayered species were formed. The thermal stability of the intersalated species was higher than that of the intercalated ones. X-ray diffraction, UV-visible, IR-spectroscopy, thermal analyses, and surface area measurements were used for characterization of the products. Copyright 2001 Academic Press.
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