title: Synthesis and structure of synthetically pure and deuterated amorphous (basic) calcium carbonates.
abstract: It is generally believed that H2O and OH-are the key species stabilizing and controlling amorphous calcium carbonate "polyamorph" forms, and may in turn control the ultimate crystallization products during synthesis and in natural systems. Yet, the locations and hydrogen-bonding network of these species in ACC have never been measured directly using neutron diffraction. We report a synthesis route that overcomes the existing challenges with respect to yield quantities and deuteration, both of which are critically necessary for high quality neutron studies.
authors.affiliation: Shull Wollan Center, The University of Tennessee/Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. wangh3@ornl.gov.
authors.forename: Hsiu-Wen
authors.identifier: http://orcid.org/0000-0002-2802-4122
authors.initials: HW
authors.lastname: Wang
authors.affiliation: Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. pagekl@ornl.gov.
authors.forename: Luke L
authors.initials: LL
authors.lastname: Daemen
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
authors.forename: Michael C
authors.identifier: http://orcid.org/0000-0003-1792-6881
authors.initials: MC
authors.lastname: Cheshire
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
authors.forename: Michelle K
authors.identifier: http://orcid.org/0000-0003-0851-835X
authors.initials: MK
authors.lastname: Kidder
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
authors.forename: Andrew G
authors.identifier: http://orcid.org/0000-0003-4355-3679
authors.initials: AG
authors.lastname: Stack
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
authors.forename: Lawrence F
authors.initials: LF
authors.lastname: Allard
authors.affiliation: Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. pagekl@ornl.gov.
authors.forename: Jörg
authors.initials: J
authors.lastname: Neuefeind
authors.affiliation: Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. pagekl@ornl.gov.
authors.forename: Daniel
authors.identifier: http://orcid.org/0000-0002-4611-4113
authors.initials: D
authors.lastname: Olds
authors.affiliation: Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. pagekl@ornl.gov.
authors.forename: Jue
authors.initials: J
authors.lastname: Liu
authors.affiliation: Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. pagekl@ornl.gov.
authors.forename: Katharine
authors.identifier: http://orcid.org/0000-0002-9071-3383
authors.initials: K
authors.lastname: Page