INTERCALATION CHEMISTRY OF COBALT AND NICKEL DIOXIDES - A FACILE ROUTE TO NEW COMPOUNDS CONTAINING ORGANOCATIONS

A simple chemical method is reported for the intercalation of layered nickel or cobalt dioxide with organocations. Compounds containing anil inium, do decyltrimethylammonium, octadecyltrimethylammonium, or diste aryl-dimethylammonium cations are obtained by reaction of lithiated ho sts with aqueous persulfate, followed by treatment with the desired or ganocation. Basal-repeat distances for the intercalated products indic ate that the arrangements of organocations are similar to those seen w ith other layered hosts, with bilayers of alkylammonium ions, or a sin gle layer of anilinium, in the pillared galleries. Thermogravimetric a nd elemental analyses are used to estimate compound stoichiometries, a nd indicate the partial exchange of organocation for lithium. The anil inium compound contains oligomeric cations, and is unstable when treat ed with polar solvents. Open circuit measurements indicate that the ma terials contain Co in an oxidation state of 3+ or higher.