ChemInform Abstract: Synthesis and Intracrystalline Oxidation of Nitrite‐Intercalated Layered Double Hydroxides.

Abstract

Intercalation H 2100 Synthesis and Intracrystalline Oxidation of Nitrite-Intercalated Layered Double Hydroxides. -The nitrite-intercalated layered double hydroxides M2Al(OH)6NO2·mH2O (M: Mg, Ni) are synthesized by addition of a NH3 solution containing ions in 10-fold excess to an aqueous solution of MCl2 and AlCl3 (2:1) followed by addition of NaNO2 (stirring, 4 d). The interlayer nitrite ions in these compounds are quantitatively oxidized to nitrate using H2O2 solutions. The samples are characterized by powder XRD and IR spectroscopy. Intracrystalline reactions could open up means to synthesize layered double hydroxides intercalated with unusual anions. -(THOMAS, N.; KUMAR, G. P.; RAJAMATHI*, M.; J. Solid State Chem. 182 (2009) 3, 592-596; Dep. Chem., St. Joseph's Coll.,