title: Neutron pair distribution function study of two-line ferrihydrite.
abstract: Pair distribution function (PDF) analysis of neutron total scattering data from deuterated two-line ferrihydrite is consistent with the Keggin-related structural model for ferrihydrite published by Michel et al. (2007). Other models proposed in the literature, such as that of Drits et al. (1993), lead to inferior fits. Bond valence sums indicate that O(1) is bonded to a hydrogen atom, but the quality of the data is such that the exact position of the hydrogen could not be elucidated with confidence.
authors.affiliation: Department of Geosciences, Stony Brook University, Stony Brook, New York 11794, United States. Richard.Harrington81@gmail.com
authors.forename: Richard
authors.initials: R
authors.lastname: Harrington
authors.forename: Douglas B
authors.initials: DB
authors.lastname: Hausner
authors.forename: Wenqian
authors.initials: W
authors.lastname: Xu
authors.forename: Narayan
authors.initials: N
authors.lastname: Bhandari
authors.forename: F Marc
authors.initials: FM
authors.lastname: Michel
authors.forename: Gordon E
authors.initials: GE
authors.lastname: Brown
authors.forename: Daniel R
authors.initials: DR
authors.lastname: Strongin
authors.forename: John B
authors.initials: JB
authors.lastname: Parise
mesh_terms: D005290:Ferric Compounds / Q000032:analysis / Q000737:chemistry*; D008962:Models, Theoretical; D009502:Neutrons
chemical_list: D005290:Ferric Compounds; C092844:ferric oxyhydroxide