Intercalation of 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane by α- and γ-zirconium phosphates

Abstract

The uptake of 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (tdco) by α- and γ-zirconium phosphates was studied at 25 °C. The α phosphate incompletely reacts with tdco to form an intercalated phase in which the guest molecules are arranged as 0.68 nm thick monolayer, probably in their twisted conformation. The γ phosphate is totally converted into a single phase containing a 0.91 nm thick bilayer of tdco molecules with their molecular planes parallel to the inorganic layers.