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Bis[[(6-carb-oxy-pyridazine-3-carboxyl-ato-?N,O)lithium]-?-penta-hydrogen-dioxy-gen(1+)].

ABSTRACT: The structure of the title compound, [Li(C(6)H(3)N(2)O(4))(2)(H(5)O(2))], is composed of centrosymmetric monomers in which an Li(I) ion is chelated by two N,O-bonding groups donated by two ligands. The Li(I) ion and both ligand mol-ecules are coplanar [r.m.s. deviation 0.0047?(2)?Å] and water O atoms are in the axial positions. The second carboxyl group of each ligand remains protonated. An additional H atom, located between adjacent coordinated water mol-ecules and observed on Fourier maps, maintains the charge balance within the monomers and bridges them by short symmetric hydrogen bonds of 2.518?(3)?Å to form catenated ribbons. The monomers also inter-act via hydrogen bonds in which water and carboxyl O atoms act as donors.

SUBMITTER: Starosta W

PROVIDER: S-EPMC3009182 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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Bis[[(6-carb-oxy-pyridazine-3-carboxyl-ato-κN,O)lithium]-μ-penta-hydrogen-dioxy-gen(1+)].

Starosta Wojciech W Leciejewicz Janusz J

Acta crystallographica. Section E, Structure reports online 20101009 Pt 11

The structure of the title compound, [Li(C(6)H(3)N(2)O(4))(2)(H(5)O(2))], is composed of centrosymmetric monomers in which an Li(I) ion is chelated by two N,O-bonding groups donated by two ligands. The Li(I) ion and both ligand mol-ecules are coplanar [r.m.s. deviation 0.0047 (2) Å] and water O atoms are in the axial positions. The second carboxyl group of each ligand remains protonated. An additional H atom, located between adjacent coordinated water mol-ecules and observed on Fourier maps, mai ...[more]

PMID: 21588805

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