title: 17O MQMAS NMR studies of Na-A and Ca-A.
abstract: We report, for the first time, 17O MQMAS and 17O/23Na double resonance NMR studies on calcium-exchanged zeolite sodium-A; the results show that the isotropic shifts of the framework sites are strongly affected by factors including the hydration level and nature of the charge-balancing cations.
authors.affiliation: Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, USA.
authors.forename: Jennifer E
authors.initials: JE
authors.lastname: Readman
authors.forename: Namjun
authors.initials: N
authors.lastname: Kim
authors.forename: Martine
authors.initials: M
authors.lastname: Ziliox
authors.forename: Clare P
authors.initials: CP
authors.lastname: Grey