High resolution solid-state1H nuclear magnetic resonance spectra of organic template in hydrated aluminophosphate VPI-5

Abstract

A spin-lock pulse sequence has been used in solid-state¹H NMR to suppress the dominant water signal and to observe, under magic-angle spinning, very narrow signals of di-n-propylamine template in the hydrated molecular sieve VPI-5. Results suggest that the technique can be extended to the study of other molecular sieves.