Organic Derivative of γ-Zirconium Phosphate

Abstract

MANY inorganic substances with layered structures form interlayer sorption complexes with polar organic molecules. Such complexes have been reported on clay minerals¹, transition metal chalcogenides^2,3, hydroxy salts⁴, iron(III) oxychloride⁵ and so on. In most of these complexes, adsorbed species are loosely bonded to the host layers and are easily removed by evacuation or exchanged with other polar molecules, such as water in air. When adsorbed molecules are linked by a covalent bond to the interlamellar surfaces, however, more stable complexes are formed^6–8. They are considered to belong to the organic derivative rather than to the sorption complex. In the course of studies on intercalation complexes, we succeeded in synthesising a new organic derivative which we describe here.