Solid-state nuclear magnetic resonance spectroscopic study of γ-zirconium phosphate

Abstract

An idealised model for the structure of γ-Zr(HPO₄)₂·2H₂O is proposed on the basis of solid-state ³¹P magic-angle spinning (m.a.s.) n.m.r. spectroscopy. Two types of phosphate environment are seen of which only one undergoes phosphate exchange with phosphate and phosphonate esters. ¹³C Cross-polarisation m.a.s. n.m.r. confirms the phenyl phosphate exchange and indicates that the phenyl rings are rigid between the layers.