Incorporation of C₆₀ in Layered Double Hydroxide

Abstract

C 60 molecules were incorporated into the interlayer of a layered Mg/Al double hydroxide compound, and the physicochemical properties of these spherical molecules arranged in two-dimensional arrays were examined. The precursor used was a double hydroxide with dodecyl sulfate counteranions. C 60 molecules were introduced by dissolving the molecules into the interlayer hydrophobic phase. After heating the resultant compound under vacuum to decompose the dodecyl sulfate, C 60 molecules were sandwiched in between the double hydroxide layers. The C 60 -incorporated compounds were characterized with X-ray diffraction, thermal gravimetric analysis, and Raman, UV-vis, and solid state NMR spectroscopies. Among them, the most powerful technique to identify the environment of C 60 was solid state 13 C NMR. The results of T 1 relaxation time and fwhm line width measurement showed that the incorporated C 60 molecules did not rotate as freely as in the pure solid form and experienced rather intimate interactions with either the interlayer proton-containing species or the lattice atoms.

Chemical, Structural, and Thermal Properties of Zn(II)–Cr(III) Layered Double Hydroxides Intercalated with Sulfated and Sulfonated Surfactants

“…The different basal spacings obtained revealed the existence of three different interlayer anion arrangements, with the shortest (26Å) assigned to a perpendicular monolayer arrangement. Similar values have been obtained by other researchers for LDHs containing the dodecyl sulfate anion (8,26,27). The interlayer spacing of 36Å was attributed to a bilayer arrangement, in which the anion is tilted at an angle of 40…”

“…Moreover, the available data was obtained in N 2 atmosphere only for DS-containing LDHs, which make difficult any comparison with the present results (25,27).…”

A critical assessment of the methods for intercalating anionic surfactants in layered double hydroxides

“…Their membrane-like nature makes them of significance in separation and membrane technologies (Newman & Jones, 1998;Tseng et al, 1996;Borja et al, 1992).…”

Preparation and Structural Characterization of Alkaline Earth−Iron(III) Layered Double Hydroxides and their Acrylate-Intercalated Derivatives

“…Intercalation may be performed in various ways like secondary intercalation (the pre-pillaring method) [23,24], dehydration-rehydration using the memory effect of the LDH (the layered structure collapses on dehydration but it is reconstructed on rehydration [25]), direct ion exchange [26], hydrothermal methods [27,28], intercalation in the presence of additives like glycerol [29], dissolution and re-co-precipitation [30,31], etc. [49] and catecholate [50]) were also intercalated.…”