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An effective route to montmorillonite intercalation with imidazole complexes: Experiment and theory

An effective route to montmorillonite intercalation with imidazole complexes: Experiment and theory,10.1016/j.molstruc.2009.02.005,Journal of Molecula

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An effective route to montmorillonite intercalation with imidazole complexes: Experiment and theory  
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Intercalation of 1H-imidazole (IM) and his derivative 2-phenylimidazole (2-PhIM) into the interlayer spaces of both natural Ca(II)-montmorillonite (Ca-MMT) and Cu(II)-montmorillonite (Cu-MMT) was carried out by two ways, solid-state intercalation and intercalation from solution. Only the presented solid-state intercalation gave required results. In situ formation of Cu complexes in the interlayer spaces of Cu(II)-MMT is not a feasible way to prepare required clay–coordination–intercalation compounds. The Cu complexes of IM and 2-PhIM have been synthesized separately and they were anchored on surface and edges of silicate layers, consequently they were not intercalated into the interlayer spaces of Ca-MMT. X-ray powder diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy were applied to characterize nanocomposites of mentioned above heterocyclic compounds and their Cu complexes with Ca-MMT and/or Cu-MMT. Infrared spectra of intercalation products indicating, that these compounds have been anchored only by non-bonding interactions into interlayer spaces. The experimental data are supported by calculated structure models using molecular dynamics simulations.
Journal: Journal of Molecular Structure - J MOL STRUCT , vol. 923, no. 1, pp. 85-89, 2009
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