title: Measuring Brønsted acid densites in zeolite HY with diphosphine molecules and solid state NMR spectroscopy.
authors.affiliation: Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, USA.
authors.forename: Luming
authors.initials: L
authors.lastname: Peng
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Chupas
authors.forename: Clare P
authors.initials: CP
authors.lastname: Grey