Influence of oxygen and nitrogen on 7Li MAS NMR spectra of zeolite LiX-1.0

Abstract

Nitrogen and oxygen were adsorbed in dehydrated samples of zeolite LiX-1.0 [(SiAlO₄)₉₆Li₉₆]; the ⁷Li MAS NMR spectra of these samples were compared with the spectrum of a sample studied in vacuum; it has been shown that the line assigned to Li cations at position SIII (δ_iso = –0.7) is influenced by the different gases, whereas lines belonging to Li cations in front of six-rings do not change (SI′ line δ_iso = 0.4, SII line δ_iso = –0.3).