¹⁷O solid state NMR as a valuable tool for deciphering reaction mechanisms in mechanochemistry: the case study on the ¹⁷O-enrichment of hydrated Ca-pyrophosphate biominerals.

ABSTRACT: The possibility of enriching in ¹⁷O the water molecules within hydrated biominerals belonging to the Ca-pyrophosphate family was investigated, using liquid assisted grinding (LAG) in the presence of ¹⁷O-labelled water. Two phases with different hydration levels, namely triclinic calcium pyrophosphate dihydrate (Ca₂P₂O₇·2H₂O, denoted t-CPPD) and monoclinic calcium pyrophosphate tetrahydrate (Ca₂P₂O₇·4H₂O, denoted m-CPPT β) were enriched in ¹⁷O using a "post-enrichment" strategy, in which the non-labelled precursors were ground under gentle milling conditions in the presence of stoichiometric quantities of ¹⁷O-enriched water (introduced here in ver

SUBMITTER: Goldberga I 

PROVIDER: S-EPMC9813801 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature