Racemic calcium tartrate tetrahydrate [form (II)] in rat urinary stones.
The title compound, [Ca(C4H4O6)].4H2O, calcium tartrate tetrahydrate, is a new triclinic centrosymmetric form identified in rat kidney calculus. The crystal structure was determined from powder and single-crystal X-ray diffraction. The four water molecules belong to one square face of the Ca-atom coordination (a square antiprism), the four O atoms of the second square face coming from two tartrate anions, building infinite chains alternating Ca atom polyhedra and tartrate anions along a, with the chains cross-linked by a network of hydrogen bonds.
Le Bail
A
A
Laboratoire des Oxydes et Fluorures, UMR 6010 CNRS, Faculté des Sciences et Techniques, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans CEDEX 9, France. armel.le_bail@univ-lemans.fr
Bazin
D
D
Daudon
M
M
Brochot
A
A
Robbez-Masson
V
V
Maisonneuve
V
V
D000818:Animals; D003460:Crystallization; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D007536:Isomerism; D008297:Male; D008855:Microscopy, Electron, Scanning; D008958:Models, Molecular; D008968:Molecular Conformation; D051381:Rats; D017208:Rats, Wistar; D013644:Tartrates / Q000737:chemistry*; D014545:Urinary Calculi / Q000737:chemistry* / Q000648:ultrastructure
D013644:Tartrates; C029768:tartaric acid