Intercalation from the liquid phase of n-alkylamines (n = 1–6) and cyclic amines in α-hafnium phosphate

Abstract

The intercalation behaviour from the liquid phase of n-alkylamines (n = 1–6) and the cyclic amines aniline, benzylamine, cyclohexylamine, piperidine and pyridine in α-hafnium phosphate Hf(HPO ₄ ) ₂ ·H ₂ O has been studied. The composition of the intercalation compounds was determined and the arrangement of the amines in the interlayer region as mono-(pyridine) or bi-molecular films (the remaining amines) is discussed from data obtained from X-ray diffraction, IR spectroscopy and chemical and thermal analysis.