title: Crystallography aided by atomic core-level binding energies: proton transfer versus hydrogen bonding in organic crystal structures.
abstract: Ionic bond or hydrogen bridge? Brønsted proton transfer to nitrogen acceptors in organic crystals causes strong N1s core-level binding energy shifts. A study of 15 organic cocrystal and salt systems shows that standard X-ray photoelectron spectroscopy (XPS) can be used as a complementary method to X-ray crystallography for distinguishing proton transfer from H-bonding in organic condensed matter.
authors.affiliation: School of Chemical Engineering and Analytical Science, The University of Manchester, UK.
authors.forename: Joanna S
authors.initials: JS
authors.lastname: Stevens
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Byard
authors.forename: Colin C
authors.initials: CC
authors.lastname: Seaton
authors.forename: Ghazala
authors.initials: G
authors.lastname: Sadiq
authors.forename: Roger J
authors.initials: RJ
authors.lastname: Davey
authors.forename: Sven L M
authors.initials: SL
authors.lastname: Schroeder