A dense hydrogen-bonding network and an unusually large packing index in triaquatris(2,4-dioxo-1,2,3,4-tetrahydropyrimidine- 5-carboxylato)neodymium(III) trihydrate
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The title mononuclear complex, [Nd(C5H3N2O3)3(H2O)3] - 3H2O, consists of an NdIII cation, three 2,4-dioxo-1,2,3,4- tetrahydropyrimidine-5-carboxylate ligands and three aqua ligands forming the neutral complex molecule, and three solvent water molecules. The pyrimidinecarboxylate ligands act in a chelating manner, via carboxylate and keto O atoms. The NdO9 coordination polyhedron is in the form of a distorted monocapped square antiprism. The availability of numerous hydrogen-bonding donors and acceptors results in a very dense hydrogen-bonding network, the immediate effect of which is an unusually large packing index.
Quote ItemActa Cryst. (2013). C69, 1378–1382
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