Proton cascade in a molecular solid: H/D exchange on mobile and immobile water

摘要

Working without pores: In non-porous, channel-free crystals of a manganese citrate coordination polymer, neutron diffraction reveals that the water molecules, both metal-bound and co-crystallized, undergo full hydrogen/deuterium exchange. Neutron diffraction analyses show a pattern of hydrogen disorder that can be interpreted in terms of the Grotthuss proton-cascade mechanism (see scheme). © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.