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(4-Oxido-2-oxo-1,2-dihydro-pyrimidine-5-carboxyl-ato-?O,O)(4-oxido-2-oxo-1,2-dihydro-pyrimidin-3-ium-5-carboxyl-ato-?O,O)bis-(1,10-phenanthroline-?N,N')gadolinium(III) dihydrate.

ABSTRACT: The title compound, [Gd(C(5)H(2)N(2)O(4))(C(5)H(3)N(2)O(4))(C(12)H(8)N(2))(2)]·2H(2)O, was obtained from a solvothermal reaction of 2,4-dihydroxy-pyrimidine-5-carboxylic acid (H(3)iso), GdCl(3)·6H(2)O and 1,10-phenanthroline (phen). The Gd(III) ion is located on a twofold rotation axis and is coordinated by four N atoms from two chelating phen ligands and four O atoms (5-carboxyl-ate and 4-oxido O atoms) from H(2)iso(-) and Hiso(2-) ligands. The mol-ecules are linked into a three-dimensional network by N-H?O, N-H?N and O-H?O hydrogen bonds. The H atom involved in an N-H?N hydrogen bond is disordered around a twofold rotation axis with half occupancy.

SUBMITTER: Xiong W 

PROVIDER: S-EPMC2960513 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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(4-Oxido-2-oxo-1,2-dihydro-pyrimidine-5-carboxyl-ato-κO,O)(4-oxido-2-oxo-1,2-dihydro-pyrimidin-3-ium-5-carboxyl-ato-κO,O)bis-(1,10-phenanthroline-κN,N')gadolinium(III) dihydrate.

Xiong Wei W   Xing Huihui H   Su Yan Y   Chen Zilu Z  

Acta crystallographica. Section E, Structure reports online 20080816 Pt 9

The title compound, [Gd(C(5)H(2)N(2)O(4))(C(5)H(3)N(2)O(4))(C(12)H(8)N(2))(2)]·2H(2)O, was obtained from a solvothermal reaction of 2,4-dihydroxy-pyrimidine-5-carboxylic acid (H(3)iso), GdCl(3)·6H(2)O and 1,10-phenanthroline (phen). The Gd(III) ion is located on a twofold rotation axis and is coordinated by four N atoms from two chelating phen ligands and four O atoms (5-carboxyl-ate and 4-oxido O atoms) from H(2)iso(-) and Hiso(2-) ligands. The mol-ecules are linked into a three-dimensional net  ...[more]

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