Preparation and magnetic properties of saponite clays intercalated with stable organic radicals
Abstract
The organic radical cations, 2-(3- and 4-N-methylpyridinium)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl 3-N-oxide, are intercalated into saponite clay {Na0.46[Si3.54Al0.46Mg3O10(OH)2]·nH2O} by means of cation exchange, and display Curie paramagnetic behaviour in the interlayers.