A new compound in kidney stones? Powder X-ray diffraction study of calcium glycinate trihydrate

作者：Le Bail Armel^*; Daudon Michel; Bazin Dominique

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2013, 69(7): 734-+.

DOI：10.1107/S0108270113015709

The present identification of a new compound in kidney stones is relevant in clinical practice. Here, poly[[di-mu-aqua-bis(glycinato-kappa N-2,O)calcium(II)] monohydrate], {[Ca(C2H4NO2)(2)(H2O)(2)]center dot H2O}(n), has been identified in a possible kidney concretion, although it could be a 'false calculus' associated with Munchausen syndrome. The crystal packing is characterized by an infinite zigzag chain of Ca atoms in [Ca(OW)(4)O2N2] (OW is a water O atom) square antiprisms, sharing edges formed by water molecules. An uncoordinated water molecule interconnects the parallel chains in a three-dimensional hydrogen-bonding scheme. Similarities between the trihydrate and the monohydrate are described.

• 出版日期2013-7