Revisiting a natural wine salt: calcium (2R,3R)-tartrate tetrahydrate.

ABSTRACT: The crystal structure of the salt calcium (2R,3R)-tartrate tetrahydrate {systematic name: poly[[diaqua[μ₄-(2R,3R)-2,3-dihydroxybutanedioato]calcium(II)] dihydrate]}, {[Ca(C₄H₈O₈)(H₂O)₂]·2H₂O}_n, is reported. The absolute configuration of the crystal was established unambiguously using anomalous dispersion effects in the diffraction patterns. High-quality data also allowed the location and free refinement of all the H atoms, and therefore to a careful analysis of the hydrogen-bond interactions.

SUBMITTER: Polo A 

PROVIDER: S-EPMC11451013 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature