Synthesis and structure of synthetically pure and deuterated amorphous (basic) calcium carbonates. Issue 20 (22nd February 2017)

• Record Type: Journal Article
• Authors: Wang, Hsiu-Wen; Daemen, Luke L.; Cheshire, Michael C.; Kidder, Michelle K.; Stack, Andrew G.; Allard, Lawrence F.; Neuefeind, Jörg; Olds, Daniel; Liu, Jue; Page, Katharine
• Is Part Of: Chemical communications. Volume 53:Issue 20(2017)
• Page Start: 2942
• Page End: 2945
• Publication Date: 2017-02-22
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c6cc08848a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : The first neutron PDF data on deuterated A(B)CC, shedding new light on H(D)-bearing species in controlling polyamorphism and crystallization processes. Abstract : It is generally believed that H2 O 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.